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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Coverage rounds up what Martyn's Law will ask of venues

Published

A new write-up summarises the practical steps venues are expected to take under Martyn's Law. The duties are not yet in force, but it is a useful prompt to start getting familiar.

What happened

Counter Terror Business has published a piece pulling together what the Terrorism (Protection of Premises) Act 2025, known as Martyn's Law, will expect of venues. It walks through the broad shape of the new duties and how premises fall into tiers. It is commentary and background rather than fresh legal text, so treat it as a helpful overview while the detail is finalised.

A quick reminder of the basics

The Act received Royal Assent in April 2025. Premises where 200 to 799 people may reasonably be expected at once sit in the standard tier; 800 or more puts you in the enhanced tier, and those counts include staff. The Security Industry Authority will act as regulator. None of the duties are enforceable yet.

What it means for venues

Nothing changes for you today. Commencement of the duties is expected in spring 2027, and the exact date is still to be confirmed. Pieces like this are a good sign that more accessible explanations are appearing, which makes it easier to understand where your venue is likely to sit and what kind of preparation will suit your size and setting.

What to do now

Use the time sensibly. Get a rough headcount for your busiest moments so you know your likely tier. Note who would make decisions in an emergency and how you would get a message to staff and visitors. Keep an eye on official SIA and government channels for confirmed dates and templates. This is familiarisation, not a compliance task you can finish today.

This is our plain-English summary. Read the original in full at Counter Terror Business.

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.