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Plain-English guidance

Everything you need to understand Martyn's Law

Written for the people who actually run venues — not security professionals. Every article is grounded in the statutory guidance and links to official sources.

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Essential reading

What is Martyn's Law, and does it apply to my venue?

10 min read · Last updated 15 April 2026

The Terrorism (Protection of Premises) Act 2025 — known as Martyn's Law — requires certain UK venues to have written public protection procedures in place before spring 2027. This guide explains who's affected, what the two tiers mean, and what you actually need to do.

If you only read one thing before checking your scope, make it this.

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Understanding the law

Standard tier vs enhanced tier: what's the difference?

Most venues fall into the standard tier. This guide explains the capacity thresholds, the special rules for places of worship and schools, and what each tier actually requires you to do.

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6 min read
Procedures

The four procedures explained: evacuation, invacuation, lockdown and communication

The law requires four written procedures. This guide explains what each one means in plain English and what a good procedure actually looks like for a small venue.

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8 min read
Specific venue types

Martyn's Law for village halls and community centres

Community halls are one of the most common standard-tier premises. This guide covers capacity counting, hire bookings, trustees' responsibilities, and what “reasonably practicable” means for a volunteer-run hall.

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7 min read
Specific venue types

Martyn's Law for places of worship

Churches, mosques, temples and other places of worship are always standard tier if 200 or more people could be present — even if they sometimes host 800+. Here's what that means in practice.

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6 min read
Specific venue types

Martyn's Law for schools and colleges

Educational premises are treated as always standard tier. This guide explains the responsible person duties for school business managers and what existing emergency planning already covers.

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7 min read
Understanding the law

Who is the “responsible person” under Martyn's Law?

The Act places duties on a named responsible person for each premises. This guide explains who that should be, how to notify the SIA, and what happens if a premises changes hands.

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5 min read
Standard tier

How do I count my venue's capacity for Martyn's Law?

Capacity under the Act isn't your day-to-day footfall — it's your peak. This guide explains how to calculate it, what “from time to time” means, and where to find the number if you're not sure.

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4 min read
Procedures

Staff awareness: what does the law actually require?

It's not enough to have written procedures — your staff and volunteers need to know them. This guide explains what awareness means in practice and how to create a simple record you can show an inspector.

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5 min read
Multi-site

Martyn's Law for organisations with multiple venues

If you manage a portfolio of premises — a chain of pubs, a trust of schools, a diocese of churches — the duty applies per venue. This guide explains how to manage compliance at scale without drowning in paperwork.

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8 min read

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