Martyn’s Law duties are not yet in force — the SIA expects commencement in early spring 2027. martynslaw.app helps you prepare, document and keep evidence now.
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Legal analysis unpacks the statutory guidance behind Martyn's Law

Published

Law firm Lewis Silkin has published an overview of what the statutory guidance for the Terrorism (Protection of Premises) Act 2025 could mean for organisations. It is a useful primer while venues wait for the duties to begin.

What happened

Lewis Silkin, a UK law firm, has put out an analysis explaining how the statutory guidance under Martyn's Law is expected to shape what organisations do. Statutory guidance is the detail that sits under the Act and helps duty holders understand what is expected in practice. This is a commentary piece, not the law itself, and not official guidance from the regulator.

What it means for venues

If you run a pub, church, hall, cinema or events space that could hold 200 or more people at once, this kind of write-up gives you an early sense of how the requirements may work. Remember the tiers: standard covers 200 to 799 people, enhanced covers 800 or more, and staff count towards the total. The duties are not in force yet. Commencement is expected in spring 2027, with the exact date still to be confirmed.

A word of caution

Third-party summaries are helpful for orientation, but they are one firm's interpretation. Nothing here is endorsed or approved by the Home Office or the Security Industry Authority, and the SIA's notification process is not yet live. Treat it as background reading rather than a checklist to act on.

What to do now

Keep familiarising yourself with how the standard and enhanced tiers work and estimate which one your venue is likely to fall into. Note down your typical peak attendance, including staff. There is no need to rush or panic — the sensible step now is steady preparation so you are ready when the duties begin.

This is our plain-English summary. Read the original in full at Lewis Silkin.

Where does your venue stand?

The free readiness checker gives you an indicative tier in about five minutes — or read the plain-English guide to the whole Act.

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What this is — and what it is not

martynslaw.app is a preparation and document-management tool. It is not legal advice, not official guidance, not official certification, not SIA approval and not a guarantee of compliance. The responsible person must review and approve all documents before use.

martynslaw.app is an independent product. It is not affiliated with, or endorsed by, the Home Office, the Security Industry Authority or any other public body. Official sources are cited as sources only.