What is Martyn's Law? A complete guide for UK businesses

Understand your responsibilities under the new counter-terrorism legislation. Get clear, practical
guidance to ensure your business is compliant and your premises are secure.

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Martyn's Law? A complete guide for UK businesses

What is Martyn's Law?

A clear breakdown of what Martyn’s Law means and why it matters.

The "Protect Duty"

Martyn’s Law (Protect Duty) requires venues and events to implement clear security measures to prevent terror threats. Following the Royal Assent of the Terrorism (Protection of Premises) Act 2025, action is now required to ensure public safety.

Who does it apply to?

Businesses and venues with a capacity of 200 or more must assess terrorist threats and put safety measures in place. This applies to both Standard Duty (200–799 people) and Enhanced Duty (800+ people) premises.

What you need to do

Requirements vary by venue size and may include risk assessments, staff training, clear procedures, and sharing plans with the SIA when needed.

Martyn Hett, whose legacy shaped Martyn’s Law

Named after Martyn Hett

The legislation is named in memory of Martyn Hett, one of the 22 people killed in the Manchester Arena terrorist attack in 2017. It aims to improve protective security at public venues and events.

Key takeaway

Martyn’s Law requires venues to put in place sensible, proportionate security measures.
It’s about being prepared to protect the public with clear procedures, not turning venues into fortresses.

Does Martyn’s Law compliance apply to my venue?

Take this short quiz to see whether you need to comply with the new update.

Download your checklist

Get instant access to our comprehensive compliance checklist.

Get the Complete Martyn’s Law Compliance Checklist

Compliance guides for
your industry

Industry-specific security guidance tailored
to your environment.

education

Education

Safeguard schools, colleges, and universities.

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education

Local Government

Protect council offices and civic centres.

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education

Places of Worship

Keep faith spaces safe and secure.

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education

Hospitality

Ensure safety in pubs, hotels, cafés.

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education

Sports & Recreation

Secure stadiums, gyms, and leisure sites.

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education

Entertainment

Manage crowds at venues and events.

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education

Retail

Secure shops, malls, and supermarkets.

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education

Healthcare

Protect hospitals, clinics, and medical sites.

Download sector guide right arrow

Don't see your industry?

Our general Martyn's Law guide covers the fundamentals that apply to all sectors.

News & updates

Stay informed with the latest developments, insights, and guidance on Martyn's Law implementation

Martyn's Law 2025: Key Changes and What Businesses Need to Know

Get Licensed - Frontline Security

13 Jul 2025

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