Venue operators should assess whether Martyn's Law will cover their premises or events and identify who will be responsible. The Terrorism (Protection of Premises) Act 2025 received Royal Assent on 3 April 2025, but that did not immediately bring the operational duties into force.
Implementation and scope
As at this update, the Home Office describes an implementation period of at least 24 months from Royal Assent. Statutory guidance has been published. Preparation should be based on that guidance and the commencement provisions, rather than treating the Act as a current blanket licensing requirement.
Qualifying premises generally need an expectation of at least 200 people being present at the same time, alongside the Act's other conditions. The standard tier generally covers 200–799 people; enhanced requirements generally apply from 800. Staff count towards the assessment, and there are special rules and exclusions.
Qualifying events have a separate test, including a threshold of 800 people and entry conditions. It is incorrect to apply a universal 200-person threshold to every event.
Proportionate preparation
The standard tier focuses on practicable public-protection procedures, such as communicating with people and managing evacuation, invacuation or lockdown. Enhanced-tier premises and qualifying events face additional requirements. The Act does not impose identical duties on every venue.
Operators should identify the responsible person, assess expected attendance and review how staff would respond. Where a landlord, tenant and event organiser share responsibilities, the contractual arrangements should support the statutory duties. Buying a commercial training package is not itself proof of compliance.
Balaghi & Rose can assist with the legal and contractual aspects of venue responsibility and regulatory risk, working with appropriate security specialists where needed. Contact info@balaghi-rose.com.
Updated 23 October 2026. General information only; advice depends on the facts and the law applicable to your matter.
