Every UK security company has a legal and commercial obligation to ensure the guards they employ or deploy hold a valid SIA licence. The Security Industry Authority (SIA) maintains a publicly searchable register of all licenced individuals — but checking it manually for every guard, every shift, is both time-consuming and error-prone.
This guide explains what the SIA Public Register is, why regular checks matter, and how modern guard management software can automate the entire process so your business stays compliant without the admin burden.
What Is the SIA Public Register?
The SIA Public Register is a free, publicly accessible database that lists every individual who holds a current, valid SIA licence. Each entry shows the licence holder’s name, licence type (e.g. Door Supervisor, Security Guard, CCTV Operator), licence number, and expiry date.
Under the Private Security Industry Act 2001, it is an offence to deploy an unlicenced individual in a licensable role. Responsibility sits firmly with the employer — not the guard. If a guard’s licence lapses and your company deploys them, your business faces criminal liability, potential SIA sanctions, and serious reputational damage.
Why Manually Checking Licences Is Not Enough
Many smaller security companies still check licences once at the point of hire, then rely on guards to self-report when their licence is due to expire. This approach has several critical weaknesses:
- Licences can be suspended mid-term. The SIA can suspend or revoke a licence at any point — not just at expiry — if a licence holder fails a criminal records check or breaches conduct requirements. A licence that was valid last week may not be valid today.
- Renewal reminders get missed. Guards managing their own renewals will sometimes let a licence lapse, especially during busy periods or personal difficulties. By the time HR notices, the guard may already be working on an expired licence.
- Manual checks do not scale. A company with 50 guards can realistically check licences by hand each month. A company with 200+ guards cannot — not reliably, not without dedicated resource.
Your Legal Obligations as an Employer
The SIA Approved Contractor Scheme (ACS) Code of Practice sets out explicit requirements for licence monitoring. ACS-accredited companies are expected to have documented processes for verifying licences before deployment and for ongoing periodic checks. Even if you are not yet ACS-accredited, these standards represent industry best practice and will be scrutinised during any SIA audit.
The SIA’s own guidance recommends that employers verify licence status via the Public Register before every deployment — not just at onboarding. For most security businesses, that means daily or shift-by-shift verification.
How Automated SIA Register Sync Works
Modern guard management platforms can connect directly to the SIA Public Register and automatically verify licence status for every guard in your workforce. Here is how that typically works in practice:
- Guard licence numbers are stored against each employee record in the system when they are onboarded.
- The system queries the SIA Public Register automatically on a defined schedule — daily is the recommended minimum.
- Licence status and expiry dates are updated in real time. Any change — suspension, revocation, or expiry — is reflected immediately in the system.
- Alerts are triggered automatically when a licence is approaching expiry (typically 60, 30, and 7 days out) or when a licence is suspended or flagged.
- Deployment is blocked for any guard whose licence status is invalid, preventing inadvertent deployment of unlicenced personnel.
This eliminates the need for manual checks entirely and creates an auditable compliance trail that demonstrates due diligence to the SIA, clients, and insurers.
What to Look for in Your Guard Management Software
Not all guard management platforms handle SIA licence verification the same way. When evaluating software, ask these questions:
- Does it query the SIA Public Register directly, or does it rely on manual data entry?
- How frequently does it check? Daily is the minimum; real-time or shift-triggered checks are better.
- Does it automatically block deployment when a licence is invalid?
- Does it generate exportable compliance reports for client or SIA audits?
- Does it send advance expiry warnings to both management and the guard themselves?
TacDesk includes automatic SIA Public Register synchronisation as a core feature — not a bolt-on. Every guard record is cross-referenced against the live register, with expiry alerts and deployment blocks built into the scheduling workflow. Security managers get a clear, real-time view of licence status across their entire workforce without opening a browser or picking up the phone.
The Cost of Getting It Wrong
The consequences of deploying an unlicenced guard extend beyond a regulatory fine. If an incident occurs involving an unlicenced operative, your public liability insurer may refuse to pay out. Clients who discover they were protected by unlicenced staff will almost certainly terminate the contract — and may pursue damages. In serious cases, the SIA can revoke your own company’s approval to operate.
Automated licence monitoring is not a luxury feature. For any security company operating at scale, it is essential infrastructure.
Summary
Staying compliant with SIA licence requirements is a continuous obligation, not a one-time onboarding task. The SIA Public Register provides the authoritative source of truth — but accessing it reliably at scale requires automation. Guard management software with built-in SIA register sync removes the manual burden, eliminates human error, and gives your business an auditable compliance record that stands up to scrutiny.
Want to see how TacDesk handles SIA licence compliance for UK security companies? Get in touch or explore our features page.