Martyn’s Law will require those responsible for certain premises and events to take reasonably practicable steps to prepare for terrorist attacks and reduce the risk of harm. Officially the Terrorism (Protection of Premises) Act 2025, it is named in memory of Martyn Hett, who was killed in the 2017 Manchester Arena attack.
The requirements are expected to come into force in spring 2027. Whether premises fall within scope depends on their use and the number of people reasonably expected to be present, rather than simply an organisation’s employee headcount.
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