The Terrorism (Protection of Premises) Act 2025 received Royal Assent on 3 April 2025, making Martyn’s Law an Act of Parliament after its passage through the House of Commons and the House of Lords. The Bill had been introduced on 12 September 2024.
Passing is not the same as being in force. A minimum 24-month implementation period applies, and the main duties are expected to commence in spring 2027. That gap is deliberate: it gives responsible persons time to work out whether they are in scope and, if they are, to put simple arrangements in place calmly rather than against a deadline.
The Act is named after Martyn Hett, one of the 22 people killed in the 2017 Manchester Arena attack, and follows a long campaign by bereaved families for a legal duty to protect the public at venues and events.
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Related guidance: Martyn's Law explained
This is a dated news update, not legal advice. For the definitive position on whether your premises or event is in scope and what is required, refer to the current statutory guidance issued under the Terrorism (Protection of Premises) Act 2025.