SIA Publishes Explainer on Its Role as the Martyn's Law Regulator
Published
GOV.UK has released a plain overview of Martyn's Law and how the Security Industry Authority will act as its regulator once the duties begin.
What happened
The Home Office has published a GOV.UK page explaining Martyn's Law and the Security Industry Authority's part in it. The SIA is named as the regulator for the new duties under the Terrorism (Protection of Premises) Act 2025. The page sets out the basics of the law and what the regulator will do. It is background reading, not a new rule or a change to the timeline.
What it means for venues
The duties are not in force yet. Commencement is expected in spring 2027, and the exact date is still to be confirmed. The SIA's notification process is not yet live either. This publication is a sign that official information is being built up gradually, so venue operators can learn how the system will work before anything applies.
A quick reminder of the tiers
The standard tier covers premises where 200 to 799 people may reasonably be expected at the same time. The enhanced tier covers 800 or more. Staff count towards these numbers. Working out which tier your venue is likely to fall into is a sensible early step.
What to do now
There is nothing you must do today. It is worth reading the GOV.UK page to get familiar with the SIA's role and the shape of the duties. Keep an eye out for further official updates, and use the time ahead to think through your venue's capacity and how you would prepare.
This is our plain-English summary. Read the original in full at GOV.UK.