The Security Industry Authority (SIA), a Home Office body under the Private Security Industry Act 2001, licenses the UK private security industry. A licence is legally required to carry out licensable activities — door supervision, security guarding, public space surveillance (CCTV), close protection, cash & valuables in transit, key holding (and vehicle immobilisation in Northern Ireland). Crucially, any licence can be checked on the public SIA register — a single, legally-required, publicly-verifiable credential, which makes it the cleanest verification target in the platform.
Sources & verification
- An SIA licence is legally required for licensable security work and any licence is checkable on the public SIA register — source, verified 2026-06-09
Verified reference information — not professional, medical, legal or careers advice. Regulations change; always check the cited primary source before relying on it.