Security Company Insurance UK: Assault, SIA & Inefficacy Cover
Reviewed by John Miller, Director & Principal Broker — 25 August 2026
What this guide covers
- Why is security company insurance a specialist class?
- How do we place a security firm the market has refused?
- What does each policy section actually do?
- Is your SIA licence a condition of your insurance?
- Who needs a non-frontline licence?
- Which covers does your security business need?
- What is inefficacy cover and why does it matter?
- Does your policy exclude assault and battery?
- Is your security firm underwriting-ready?
- How is key holding and alarm response covered?
- What are you signing up to in client contracts?
- How adverse is your security risk profile?
- How are lone workers and mobile patrols treated?
- What drives a security company's premium?
- What do security company claims look like?
- What if you have already been refused cover?
Why is security company insurance a specialist class?
Security company insurance is a specialist class because the peril you are contracted to encounter — deliberate physical force — is the peril standard public liability wordings exclude. A manned guarding business needs assault and battery cover written back in, wrongful arrest cover, and inefficacy cover for the situation where a client suffers the very loss you were hired to prevent. On top of that, SIA licence status functions as a condition of the policy rather than merely a legal requirement, so an unlicensed operative can invalidate a claim entirely. Cover is available, including for firms already refused, but it is manually underwritten rather than scheme-rated.
Most trades buy insurance for things that might go wrong. Security companies buy insurance for things that are, in a real sense, the job. If a door supervisor restrains someone, force has been applied deliberately. If a mobile patrol officer detains a suspected shoplifter, a person has been deprived of their liberty. These are not accidents. They are intentional acts carried out lawfully in the course of duty — and general liability wordings are built around accidental injury, not deliberate acts.
That is why a generic commercial policy fails a security firm so completely. Standard public liability wordings routinely contain exclusions or sub-limits for assault, battery and deliberate physical acts. A security-specific policy has to write those back in explicitly, along with wrongful arrest, defamation and — the cover almost nobody talks about — inefficacy.
The second structural problem is regulatory. The Private Security Industry Act 2001 makes certain activities licensable, and the Security Industry Authority issues those licences. Insurers do not treat licensing as somebody else's problem. Policies typically require licences to be held in accordance with the Act, which converts a compliance failure directly into a coverage failure.
This guide is written for contract security businesses — manned guarding, static site security, mobile patrol, key holding and alarm response. If your work is event-based crowd management, our guide to event security and crowd management insurance covers that lane, including Martyn's Law duties, and our Martyn's Law insurance page addresses the premises duty directly.
Key facts at a glance
- Standard public liability commonly excludes assault and battery. Specialist security wordings write it back in, usually with an inner limit. Check whether yours is included, sub-limited or absent altogether.
- SIA licence status operates as a policy condition. Where a wording requires licences held in accordance with the Private Security Industry Act 2001, deploying an unlicensed operative can leave a claim uninsured.
- Directors and managers can need a non-frontline licence even if they never work a door. A publican directly employing in-house door staff can fall within the requirement too.
- Inefficacy is the exposure unique to guarding. Ordinary liability responds to damage you cause, not to a loss you were hired to prevent and did not. Without inefficacy cover, that claim is yours.
- A front line licence covers lower-tier activities. A door supervisor licence also permits security guarding; a close protection licence permits both door supervision and security guarding.
- Employers' liability is compulsory at £5 million minimum under the Employers' Liability (Compulsory Insurance) Act 1969, though £10 million is the market standard — and self-employed door staff will usually count as employees.
- ACS accreditation is a genuine rating lever. SIA Approved Contractor Scheme status, plus BSIA or IPSA membership, is taken into account by underwriters precisely because it is voluntary and audited.
The Insurability Framework™
Security contracting is a textbook case for the Insurability Framework: a licensed, regulated, essential service that automated systems refuse on activity code alone. Here is how each pillar applies to a manned guarding business specifically.
Underwriter Intelligence
A security underwriter is answering three questions: will your officers use force badly, are they properly licensed, and what have you promised your clients contractually. Knowing that licence audit trails, use-of-force training and a review of your client contract terms are what actually move terms lets us lead with them rather than with turnover.
Difficult Risk Expertise
Firms with an assault claim, firms working licensed premises and night-time economy contracts, firms holding keys to hundreds of client sites, and firms already declined by two or three markets are routinely refused by standard schemes. These are placeable through specialist and Lloyd's-side capacity on a manually underwritten submission.
Risk Assessment
The losses that damage security firms are usually uninsured rather than underinsured — an inefficacy claim with no inefficacy section, a contractual indemnity signed without checking whether the policy follows it, a licence that lapsed unnoticed on an officer still being deployed. These get found before a claim finds them.
Claims Advocacy
An assault allegation against an officer arrives simultaneously as a civil claim, a possible criminal matter and an SIA licensing issue, often with CCTV footage that needs securing within days. Having a broker who understands all three tracks changes how the first fortnight goes, and the first fortnight usually decides the outcome.
What does each policy section actually do?
A security company programme normally combines public liability with security-specific extensions, employers' liability, professional indemnity and cyber. The extensions are what make it a security policy rather than a general commercial one — and their absence is what turns a routine incident into an uninsured loss.
| Policy section | What it answers | Typical security scenario | Where firms get caught |
|---|---|---|---|
| Public liability | Injury or property damage to third parties | A member of the public trips over equipment; a patrol vehicle damages a client's gate | The base wording excludes deliberate acts — which is most of what your officers do |
| Assault & battery write-back | Injury caused by the reasonable use of force in the course of duty | A restraint at licensed premises causes injury; a detained person alleges excessive force | Frequently sub-limited well below the PL limit, or omitted entirely on generic policies |
| Wrongful arrest & detention | Claims for false imprisonment, malicious prosecution and related torts | A suspected shoplifter is detained and no offence is established | Assumed to sit inside PL when it is normally a separate named extension |
| Inefficacy / failure to perform | Client loss caused by your failure to provide the service effectively | A site is burgled while your officer was asleep, absent or failed to complete patrols | The single most commonly missing section in the class — and the most commonly needed |
| Employers' liability | Injury to staff — compulsory by law | An officer is assaulted on duty; a lone patrol officer is injured at night | Self-employed door staff assumed outside EL when the working reality says otherwise |
| Professional indemnity | Financial loss from negligent advice or specification | Advising a client on guarding levels, risk assessment or system specification | Overlooked until a corporate or public sector contract demands it at £2m or more |
| Loss of keys & key holding | Cost of replacing keys and re-securing premises | A key bunch for twelve client sites is lost, requiring lock replacement across all of them | Sub-limited far below the real cost of re-keying multiple commercial sites |
Is your SIA licence a condition of your insurance?
In practice, yes. Security liability wordings commonly require that licences are held in accordance with the Private Security Industry Act 2001. That makes licensing a coverage question, not merely a compliance question — deploy an operative whose licence has lapsed, been revoked or was never correct for the activity, and an insurer has a strong argument that the resulting claim falls outside cover.
This is the single most under-appreciated exposure in the sector, and it is entirely administrative. Nobody sets out to deploy an unlicensed officer. It happens because a licence expired on a Tuesday and the rota was built on a Friday, or because an officer moved from static guarding to door supervision without anyone checking that the licence covered the new activity.
The licence hierarchy matters here, and it works in one direction only. Front line licences permit the activities covered by a non-front line licence. A close protection licence also permits door supervision and security guarding. A door supervisor licence also permits security guarding. A security guarding licence does not permit door supervision. Moving an officer up the hierarchy without the corresponding licence is the classic error.
The CCTV trap
A front line licence permits using CCTV to identify a trespasser or protect property. It does not cover public space surveillance. Guarding premises, property or people by using CCTV equipment to watch members of the public, identify particular individuals, or guard against disorder and protect people from assault requires a separate public space surveillance (CCTV) licence. Firms that add a monitoring service to an existing guarding contract frequently miss this.
The control that solves it is unglamorous and completely effective: a licence register with expiry dates, checked against the rota before deployment, and evidence retained. Underwriters credit it, and it is the first thing they will ask for after an incident. Guidance on which activities are licensable is published at GOV.UK.
Who needs a non-frontline licence?
A non-frontline licence is required by those who manage, supervise or employ people carrying out licensable activity but do not perform it themselves. That includes directors and partners of security companies in purely administrative roles — and, critically, publicans and venue operators who directly employ in-house door staff rather than contracting a security firm.
Two groups get caught by this repeatedly, and both are commercially significant.
The first is the security company director who has never worked a door. A director with an administration-only role in a business engaged in licensable activities must still hold at least a non-frontline licence. The company can be fully compliant at officer level and still be contravening the Act at board level — with the insurance consequences that follow from a wording requiring compliance.
The second is the venue that employs door staff directly. A publican who directly employs door supervisors, without becoming involved in door supervision activity personally, can still fall within the requirement to hold at least a non-frontline licence. Venues that bring security in-house to save money frequently do not realise they have taken on a licensing obligation as well as a payroll.
From recent placement conversations
The one that stays with me is a firm that had done everything right operationally — good officers, current licences, proper training records, ACS accredited. What nobody had ever mentioned was that both directors needed non-frontline licences. Neither had one. They had been trading for six years. It only surfaced because I asked the question during a renewal review, and the answer was a slightly puzzled "why would I need one, I'm never on site?" It cost them a few weeks and an application fee to fix. Had it surfaced after an incident instead, it would have been the first thing an insurer's investigator wrote down. Ask the question about your own board before somebody else does.
Which covers does your security business need?
Requirements diverge sharply by the type of security you provide. Static commercial guarding, night-time economy door supply, mobile patrol and key holding, and close protection all carry different exposures and are underwritten by different markets. Select the closest match below.
Cover Checker: what your security model needs
General information only — not personalised advice, not a recommendation and not a quotation. Cover is subject to insurer acceptance and underwriting.
Select a security model above to see the cover profile.
What is inefficacy cover and why does it matter?
Inefficacy cover responds where a client suffers a loss you were engaged to prevent, and alleges your failure to perform the service caused it. Ordinary public liability answers damage you cause; it does not answer a burglary that happened because your officer was asleep, absent, or did not complete the patrols the contract specified. Without an inefficacy section, that claim sits with your business.
This is the exposure that separates security contracting from every other trade, and it is routinely missing from policies sold to security firms by generalist channels. Think about what a manned guarding contract actually promises. Not "we will avoid damaging your premises" — that is any contractor. It promises "we will prevent loss at your premises." When loss occurs anyway, the client's first question is whether you did what you were paid to do.
The classic inefficacy scenario is depressingly simple. An officer on a night shift falls asleep or leaves the site early. A burglary occurs during the gap. The client's insurer pays the claim and then pursues your business by subrogation, arguing that the loss flowed from your failure to perform. The stock is gone, the client's insurer wants recovery, and the public liability section does not answer a failure-to-prevent allegation.
Where inefficacy meets contract
Inefficacy exposure and contractual liability are closely linked. Many client contracts include service-level terms and indemnities that widen your liability well beyond what the common law would impose. An inefficacy section that responds to negligence may not respond to a liability you assumed voluntarily by signing. Both need to be looked at together, which is why we read the client contract as part of the placement rather than after it.
Does your policy exclude assault and battery?
Standard public liability wordings commonly exclude or sub-limit assault, battery and deliberate physical acts. Security-specific policies write cover back in for the reasonable use of force in the course of duties, but frequently at an inner limit far below the headline public liability figure. Knowing which of the three positions you hold — included, sub-limited, or excluded — is essential.
The logic of the standard exclusion is straightforward from an insurer's point of view. Liability insurance is built around accidental injury and generally excludes deliberate acts, partly on public policy grounds. The problem is that lawful, proportionate use of force by a licensed officer is deliberate by definition, even though it is entirely legitimate.
Three practical checks. First, confirm the write-back exists at all rather than assuming a "security policy" includes it. Second, find the inner limit — a £10 million public liability with a £250,000 assault and battery sub-limit is a very different policy from one where the full limit applies. Third, check how defence costs are treated, because assault allegations are defence-cost heavy even where the officer acted entirely properly.
Note that a related but distinct exposure runs alongside it. Where an officer is prosecuted, the civil claim, the criminal proceedings and the SIA licensing review all run in parallel. Legal expenses cover is worth considering specifically for that reason, and our guide to high-risk public liability insurance looks at the wider category of trades standard markets treat this way.
Is your security firm underwriting-ready?
Security underwriters assess controls and contracts before they assess price. The checklist below reflects the evidence a specialist underwriter expects to see. Each unticked item is either a loading or a decline — work through it before you approach the market.
Underwriting readiness checklist
General information only — not personalised advice, not a recommendation and not a quotation. Tap each item you can currently evidence.
- Licence register with expiry dates, checked against the rota before every deployment
- Every director, partner and manager holds at least a non-frontline licence where required
- Licence type verified against activity — door supervision, CCTV surveillance and close protection each checked separately
- Documented use-of-force policy with conflict management training records for every officer
- Assault and battery position confirmed in writing: included, sub-limited, or excluded
- Inefficacy cover in place, or a conscious decision recorded that it is not required
- Client contracts reviewed for indemnities and service levels wider than your policy responds to
- Incident reporting procedure with CCTV retention protocol and defined preservation timescales
- Key register with controlled issue, return and loss reporting for every client site
- Lone worker policy with check-in system for night patrols and single-officer sites
- SIA Approved Contractor Scheme status, or BSIA / IPSA membership
- Self-employed officers' status reviewed against the EL position and wage roll declaration
How is key holding and alarm response covered?
Key holding creates two distinct exposures: the cost of replacing keys and re-securing premises if a bunch is lost, and liability for what happens at a client's site while your officer holds access to it. Loss of keys cover is usually a named extension with an inner limit, and that limit is frequently set well below the real cost of re-keying multiple commercial sites.
The arithmetic is what catches firms out. A single key bunch may cover a dozen client premises. Losing it does not mean cutting a dozen new keys — it means replacing locks, re-issuing keys to every authorised holder at every affected site, and potentially funding alarm re-programming. A £25,000 inner limit disappears quickly across twelve commercial buildings, and the shortfall lands on the security firm because the client will not absorb it.
Alarm response adds a further layer. An officer attending an activation is entering unfamiliar premises, often at night, sometimes with an intruder present. That engages employers' liability for the officer's safety, public liability for any damage caused during entry, and potentially inefficacy if the response time contracted for was not met and loss followed.
What are you signing up to in client contracts?
Security contracts frequently contain indemnities, hold-harmless clauses and service-level terms that impose liabilities wider than the common law would. Liability policies generally cover what you are liable for at law, not what you have voluntarily assumed by signing. Contractual liability is the most common route by which a security firm ends up with an uninsured obligation.
Corporate and public sector clients issue standard terms drafted to protect the client, not to be insurable by the supplier. Common problem clauses include unlimited indemnities, obligations to indemnify the client regardless of fault, waivers of subrogation not matched by the policy, and liquidated damages tied to service levels.
Three practical rules. Read the insurance clause and the indemnity clause together, because they frequently do not match. Ask your broker whether the policy follows the contractual liability you are assuming before you sign, not after a claim. And where a contract requires a limit or a cover you do not hold, raise it during tender — that is a negotiable point far more often than security firms assume.
How adverse is your security risk profile?
Two variables drive most of the pricing spread: the environment your officers work in, and the claims and refusal history behind the business. The assessor below gives an indicative view of where a submission is likely to land and which market will need to see it.
Risk Assessor: indicative placement tier
General information only — not personalised advice, not a recommendation and not a quotation. Indicative output based on general market behaviour, not an assessment of your business.
Choose both options to see an indicative tier.
How are lone workers and mobile patrols treated?
Lone working is the defining employers' liability exposure in contract security. A single officer on a night shift, a mobile patrol attending an alarm activation at 3am, or a static guard alone on an industrial estate all face foreseeable risk of violence with no immediate support. Underwriters expect a documented lone worker policy with a check-in system, and its absence is a significant rating factor.
The duty is not exotic. Employers must assess risks to employees and take reasonably practicable steps to control them, and where the foreseeable risk includes assault by a third party, that risk sits squarely within the assessment. The HSE publishes guidance on lone working, and an employers' liability claim following an assault on a lone officer will test whether it was followed.
Practical controls that underwriters credit: a check-in and escalation system with defined intervals and a named responder, dynamic risk assessment training so officers can withdraw from a situation without fear of disciplinary consequence, body-worn video where appropriate, and a written policy that officers are not expected to physically intervene where withdrawal is safer.
The instruction that creates the claim
Where a client's assignment instructions require an officer to intervene in circumstances your own risk assessment would advise against, you have a conflict between your contractual duty to the client and your statutory duty to your employee. Resolve it at contract stage, in writing. After an incident, an assignment instruction requiring intervention becomes evidence that the employer knew the risk and directed the officer into it anyway.
What drives a security company's premium?
Twelve factors do most of the rating work on a security company. Activity mix and claims history dominate, but licensing controls, accreditation and contract terms are all within your control and can be improved before renewal rather than merely disclosed at it.
| Rating factor | Why underwriters care | What improves it |
|---|---|---|
| Activity mix | Night-time economy door supply carries far higher assault frequency than daytime static guarding | Declare the split accurately; understating door work to secure a guarding rate is a fair-presentation breach |
| Claims history | An assault or wrongful arrest claim signals training and supervision failure, not bad luck | A documented root cause and remediation narrative for every prior loss |
| Licensing controls | Licence status is a coverage condition, so control failures are coverage failures | A licence register with expiry dates checked against the rota before deployment |
| Prior refusal or cancellation | Disclosable, and it narrows the panel sharply in a small specialist market | Address the specific decline reason rather than re-presenting the risk unchanged |
| ACS accreditation | SIA Approved Contractor Scheme status implies audited processes; BSIA and IPSA membership similar | Achieve and evidence it — genuinely differentiating because it is voluntary |
| Years trading | Longevity correlates with stable procedures and lower claims frequency in this class | Nothing, other than time — but present the full history rather than the current entity only |
| Use-of-force training | Conflict management and physical intervention training directly affects assault claim frequency | Accredited training with refresher intervals, recorded per officer |
| Client contract terms | Assumed liabilities can exceed what the policy responds to | Review indemnities and service levels before signing; negotiate uninsurable terms out |
| Self-employed officer ratio | Contractor models create EL classification disputes and wage roll under-declaration | Written position on status, confirmed with your insurer, with accurate declarations |
| Key holding volume | Determines the true exposure behind a loss of keys inner limit | Count the sites, price the re-keying, and set the limit against reality |
| CCTV and body-worn video | Evidence quality decides contested assault claims; footage is also personal data | Retention protocol with defined preservation timescales after any incident |
| Turnover and officer numbers | The exposure base for both liability sections | Accurate declaration; mid-term growth should be disclosed, not saved for renewal |
Premium figures circulating in the sector are illustrative only and are not quotations. Two security firms with identical turnover can be priced very differently on activity mix and licensing controls alone, which is why manual underwriting rather than a scheme rate is normal once door supply is involved.
What do security company claims look like?
The three scenarios below are illustrative composites written for this guide — not real clients and not actual claims. Figures are indicative of how claims of this type develop and are not settlements handled by Miller & Partner. The shape of each claim matters more than its headline value.
Composite 1 — The restraint that went to three tribunals at once
Scenario: A door supervisor removes an intoxicated customer from a city-centre bar. The customer resists, is taken to the ground, and sustains a fractured wrist and facial injuries. The customer alleges excessive force. The officer maintains the restraint was proportionate. Bar CCTV covers the entrance but not the pavement where the restraint concluded.
Claim type: Public liability with an assault and battery write-back, running alongside a police investigation and an SIA licensing review of the officer.
Indicative development: Settlement in the region of £47,000 with defence and investigation costs of approximately £39,000. The policy carried a £10 million public liability limit but a £250,000 assault and battery inner limit — adequate here, but the firm had not known the sub-limit existed.
Lesson: The absence of pavement CCTV cost more than the injury did. Where the only footage stops at the door, the dispute becomes one account against another, and defence costs escalate accordingly.
Indicative renewal impact: Premium increase in the order of 95–130%, with a body-worn video condition and evidenced refresher conflict management training.
Composite 2 — The inefficacy claim with no inefficacy cover
Scenario: A security firm holds a manned guarding contract for a distribution warehouse, requiring hourly perimeter patrols overnight logged electronically. On one shift the officer completes two patrols and logs none thereafter. A break-in occurs at approximately 4am and high-value stock is removed. The client's insurer pays the claim and pursues the security firm by subrogation.
Claim type: Inefficacy / failure to perform, pursued as breach of contract and negligence.
Indicative development: Stock loss of approximately £310,000 plus the client's business interruption claim of around £70,000. The firm's policy carried public liability but no inefficacy section. The public liability insurer declined on the basis that the loss was not damage caused by the insured but a failure to prevent a third party's act, leaving the firm exposed on an uninsured basis.
Lesson: This is the cover gap that ends security businesses. The electronic patrol log that was supposed to demonstrate performance instead documented the failure precisely, minute by minute. Inefficacy cover is not an optional extension in contract guarding.
Indicative renewal impact: Contract terminated by the client; cover re-placed with an inefficacy section at a premium increase in the order of 160–210%.
Composite 3 — The licence that expired on a Tuesday
Scenario: A retail loss prevention officer detains a suspected shoplifter. No offence is established and the detained person brings a claim for wrongful arrest and false imprisonment. During investigation it emerges that the officer's SIA licence had expired eleven days before the incident. The renewal application was in progress but not granted.
Claim type: Wrongful arrest and false imprisonment, with a coverage dispute over the licensing condition running alongside it.
Indicative development: The underlying claim settled at approximately £18,000 with costs near £24,000 — a modest claim. The coverage argument was the expensive part, consuming a further £46,000 and eight months, because the wording required licences held in accordance with the Private Security Industry Act 2001 and the officer had been deployed unlicensed.
Lesson: A small claim became an existential one purely through an administrative failure. A licence register checked against the rota before deployment would have cost nothing and prevented all of it.
Indicative renewal impact: Premium increase in the order of 70–100%, with a licence verification condition precedent applied.
How should a security firm handle a claim?
The first seventy-two hours decide most security claims, and the reason is evidence. CCTV overwrites, officers move between employers, and recollections harden into inconsistency. The eight steps below set out the process from incident through to renewal.
- Secure the CCTV before it overwrites. Most systems overwrite within 14 to 31 days. Download and preserve footage of the incident and the period either side of it the same day, and record who retrieved it and when.
- Take contemporaneous statements from every officer present. Written accounts taken within hours are worth far more than recollections taken weeks later. Record them separately, without officers conferring, and date and sign each one.
- Notify your insurer immediately. Do not wait for a letter of claim or a police contact. Liability policies require prompt notification of circumstances that may give rise to a claim, and delay is a defence insurers will run.
- Evidence the licence position for that shift. Produce the SIA licence record for every officer on duty, confirming the licence was valid and correct for the activity performed. This is the first thing an insurer will check.
- Retrieve the assignment instructions and client contract. The scope of what you agreed to do determines whether an allegation is a liability claim, an inefficacy claim or a contractual dispute. Locate the signed contract and the site-specific instructions.
- Track the criminal and licensing routes separately. An assault allegation can run as a civil claim, a police matter and an SIA licensing review simultaneously. Each has its own timescale, and an admission in one damages your position in the others.
- Route all client communication through your broker. Do not discuss liability or offer credits to a client directly. Concessions made commercially to preserve a contract can be treated as admissions and can prejudice cover.
- Build the remediation narrative before renewal. Document the root cause, what has changed in training, supervision or licensing controls, and the evidence it has not recurred. A claim presented with remediation renews very differently from a bare loss-run entry.
What if you have already been refused cover?
A refusal is not the end of the placement, but it changes how the risk must be presented. Security is declined on activity code alone by many automated systems, so a refusal often says more about the distribution channel than about your business. The decline reason must be answered directly, and further uncoordinated approaches actively damage your position.
Two things matter most once you have been turned down. First, every additional declinature is itself disclosable and narrows an already small specialist panel. Independently shopping around after a refusal is the most common way security firms make their own placement harder. Stop approaching markets directly and let a broker sequence it.
Second, the decline reason is the submission. If cover was refused after an assault claim, the submission needs the root cause and the change in training and supervision. If it was refused on a licensing issue, it needs the register, the audit trail and the control that now prevents recurrence. If it was refused on activity code alone, it needs to reach an underwriter who reads submissions rather than a system that filters them.
Our guides to insurance for businesses refused cover, business insurance with a claims history and high-risk trades insurance set out the wider approach, and the Insurability Framework explains the structured method behind it.
John Miller — Director & Principal Broker
John has spent over 13 years placing commercial risks that standard markets decline, including manned guarding contractors, door supply firms working the night-time economy, and security businesses carrying an assault or wrongful arrest claim. Former number one Account Executive at Brown & Brown and number one Salesperson at AXA, with direct access to Lloyd's syndicates and specialist liability MGA schemes.
More about John • enquiries@millerandpartner.co.uk • 01792 001350
Glossary of terms
- ACS
- The SIA Approved Contractor Scheme — a voluntary, audited accreditation for security suppliers. Taken into account by underwriters when rating.
- Assignment instructions
- Site-specific written instructions setting out what officers must do at a client's premises. Central evidence in inefficacy and employers' liability disputes.
- Assault and battery write-back
- A policy extension restoring cover for injury caused by the reasonable use of force, which the base public liability wording would otherwise exclude.
- Close protection
- Guarding individuals against assault or injury. A licensable front line activity that also permits door supervision and security guarding.
- Condition precedent
- A policy term that must be satisfied before the insurer's liability arises at all. Licensing requirements are frequently drafted this way.
- Contractual liability
- Liability assumed voluntarily by signing an agreement, as distinct from liability imposed at law. Frequently wider than the policy responds to.
- Door supervisor licence
- The SIA licence required to guard licensed premises against damage, theft, unauthorised access or disorderly behaviour. Also permits security guarding.
- Duty of fair presentation
- The obligation under the Insurance Act 2015 to disclose every material circumstance a prudent underwriter would want to know, clearly and accessibly.
- Front line licence
- An SIA licence permitting the holder to carry out licensable activity in person. Permits the activities covered by a non-front line licence.
- Inefficacy
- Cover for client loss arising from your failure to provide the contracted service effectively. Distinct from liability for damage you cause.
- Inner limit
- A sub-limit applying to a specific extension, below the headline policy limit. Common on assault and battery and loss of keys sections.
- Key holding
- Holding keys to a client's premises and attending as required. Creates both loss-of-keys and premises liability exposure.
- Non-front line licence
- The SIA licence required by those who manage, supervise or employ people performing licensable activity without performing it themselves — including directors in administrative roles.
- Private Security Industry Act 2001
- The statute creating the SIA and the licensing regime for the private security industry in the UK.
- Public space surveillance licence
- The separate SIA licence required to guard premises, property or people using CCTV to watch or identify members of the public. Not covered by a front line licence.
- Subrogation
- An insurer's right, having paid its policyholder, to pursue a third party responsible for the loss. The route by which a client's insurer pursues a security contractor.
- Wrongful arrest
- A claim arising from detaining a person without lawful justification. Usually a separately named extension rather than part of base public liability.
Frequently asked questions
The core programme is public liability with an assault and battery write-back, wrongful arrest cover, inefficacy cover and employers' liability. Key holding firms need a loss of keys extension, monitoring firms need cyber and data cover, and any firm advising clients on guarding levels or risk assessment should consider professional indemnity.
Not by default. Standard public liability wordings commonly exclude or sub-limit assault, battery and deliberate physical acts, because liability insurance is built around accidental injury. Security-specific policies write cover back in for the reasonable use of force in the course of duty, but frequently at an inner limit well below the headline public liability figure.
It can. Security liability wordings commonly require licences to be held in accordance with the Private Security Industry Act 2001, which makes licence status a coverage question rather than only a compliance one. Deploying an officer whose licence has lapsed or is wrong for the activity gives an insurer a strong argument that the claim falls outside cover.
Often yes. A director, partner or manager of a business engaged in licensable activities generally needs at least a non-frontline licence, even in a purely administrative role and even if they never attend a site. The same requirement can extend to a publican who directly employs in-house door staff rather than contracting a security firm.
It responds where a client suffers the very loss you were engaged to prevent and alleges your failure to perform caused it — a burglary during a shift where patrols were not completed, for example. Ordinary public liability answers damage you cause, not a failure to prevent a third party's act, so without inefficacy cover the claim sits with your business.
No. The hierarchy runs one way only. A close protection licence permits door supervision and security guarding; a door supervisor licence permits security guarding; a security guarding licence does not permit door supervision. Moving an officer up the hierarchy without the correct licence is a common and costly error.
Usually yes. A front line licence permits using CCTV to identify a trespasser or protect property, but guarding premises, property or people by watching or identifying members of the public requires a separate public space surveillance (CCTV) licence. Firms adding monitoring to an existing guarding contract frequently miss this.
Usually they need to be. Where door staff work under your direction, to your rota and your assignment instructions, the working reality generally points to employment for employers' liability purposes regardless of the contractual label. Their payments should be included in your wage roll declaration, because under-declaring resurfaces at claim stage.
A loss of keys extension covers replacing keys and locks and re-securing the premises, but it carries an inner limit that is frequently set well below the real cost. A single bunch may cover a dozen client sites, and re-keying twelve commercial buildings exhausts a modest limit quickly, leaving the shortfall with the security firm.
The legal minimum is £5 million under the Employers' Liability (Compulsory Insurance) Act 1969, but £10 million is the market standard and many client contracts require it. In security the exposure is real rather than nominal, because officers are assaulted on duty and lone working is routine.
It is taken into account. SIA Approved Contractor Scheme status, along with BSIA or IPSA membership and recognised quality standards, is credited by underwriters when rating alongside years trading, turnover, claims experience and the type of work carried out. It matters precisely because it is voluntary and independently audited.
Yes, but it needs a specialist placement rather than a scheme quote. The submission has to address the root cause directly — what the training and supervision position was, what has changed, and what evidence exists that it has not recurred. Approaching markets independently after a refusal makes this harder, because each declinature is itself disclosable. Our commercial insurance service covers the wider sector.
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About this guide
This guide is general information about insurance for UK security companies and manned guarding contractors. It is not advice, and it is not a recommendation or a quotation. Any cover described is subject to insurer acceptance, the full policy wording, and underwriting.
The case studies are illustrative composites written for this guide — they are not real clients and not actual claims, and the figures are indicative of how claims of this type develop rather than settlements handled by Miller & Partner. Premium ranges and limits referred to are illustrative and are not quotations. The interactive tools in this guide provide general information only and do not constitute personalised advice, a recommendation or a quotation.
Legislation, licensing requirements and guidance are stated as at the publication date shown at the top of this guide. SIA licensing requirements are set by the Security Industry Authority and should be confirmed directly with the SIA for your specific activities. Policy terms including assault and battery write-backs, inefficacy sections and licensing conditions vary between insurers — always read your own wording rather than relying on the general descriptions here. For our regulatory status, please see the footer of this website.
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