Legislation | Martyn’s Law: An Overview of the Terrorism (Protection of Premises) Act 2025

Introduction

Martyn’s Law - formally the Terrorism (Protection of Premises) Act 2025 - is one of the most significant pieces of counterterrorism legislation introduced in the United Kingdom in recent years. It aims to enhance the safety and preparedness of publicly accessible venues and events in response to the ongoing threat of terrorism. The Act is named in honour of Martyn Hett, one of the 22 victims of the Manchester Arena bombing on 22 May 2017. The campaign for the law was led by his mother, Figen Murray OBE, whose efforts have been central in shaping the legislation.

 

The Act received Royal Assent on 3 April 2025, completing its passage through Parliament after several years of consultation, drafting and scrutiny.  It creates a legal duty for those responsible for certain premises and events to take “reasonably practicable steps” to improve security, prepare for terrorismrelated incidents, and reduce risk to the public. These duties are proportionate, tiered, and tailored to the expected occupancy of premises.

 

Background and Rationale

The Manchester Arena attack exposed significant gaps in the preparedness of public venues to respond effectively to terrorism. Investigations revealed that many large venues lacked consistent procedures, staff training, and vulnerability assessments. As the threat of terrorism remained high - law enforcement agencies disrupted 39 latestage plots between 2017 and 2025, with 15 domestic terror attacks occurring over the same period, pressure grew to introduce a statutory Protect Duty.

 

Public sentiment, combined with campaigning from victims’ families, led the government to develop the Draft Terrorism (Protection of Premises) Bill in 2023. After consultations in 2023 and 2024, prelegislative scrutiny, and several amendments, the final Act was passed in early 2025.

 

Scope of the Act

The Act applies to publicly accessible premises and events where it is “reasonable to expect” a certain number of individuals to be present at the same time. The following criteria determine whether a premises falls within scope:

·        The presence of at least one building (or being located within a building).

·        The premises being wholly or mainly used for specific activities listed in Schedule 1 (e.g. entertainment, retail, leisure, education, hospitality, places of worship).

·        Reasonable expectation of the required number of individuals present.

 

Examples of premises likely to be in scope include:

·        Nightclubs, bars, theatres, sports stadiums

·        Museums, galleries, libraries

·        Hotels and hospitality venues

·        Hospitals and certain healthcare facilities

·        Large retail environments, shopping centres, and visitor attractions

·        Universities and higher education institutions (at standard or enhanced duty depending on occupancy)

 

Notably, offices and residential buildings are excluded, but publicprivate spaces like major shopping centres are typically included. Most parks and open-air spaces are excluded unless they meet special criteria.

 

Tiered Approach: Standard and enhanced duties

The Act divides responsibilities into two tiers, depending on the number of people a venue expects to host:

 

1. Standard Duty (200–799 individuals)

These premises must:

·        Notify the regulator (SIA) of their duty-holder status

·        Complete basic terrorism awareness training

·        Implement simple, proportionate public protection procedures

·        Ensure clear and coherent internal response protocols (e.g., evacuation, shelter, communication)

 

The focus is not on installing physical security measures but on ensuring staff are trained and procedures are in place.

 

Places of worship and education settings (childcare, primary, secondary, further education) are always within the standard duty, regardless of size.

 

2. Enhanced Duty (800+ individuals)

Enhancedduty premises must meet all standard requirements plus:

·        Conduct terrorism risk assessments

·        Develop and maintain more detailed security plans

·        Consider steps to reduce vulnerability (e.g., access controls, CCTV usage, bag checks if appropriate)

·        Provide more extensive staff training

·        Engage in regular exercises and review procedures

·        Coordinate closely with police and emergency services

 

Enhanced duty also applies to large events meeting specific criteria (e.g., 800+ attendees, defined premises, express permission required for entry).

 

Regulation and Enforcement

The Act introduces a new regulatory regime overseen by the Security Industry Authority (SIA), which will:

·        Advise and support duty holders

·        Monitor compliance

·        Issue statutory guidance

·        Enforce requirements where needed, including penalties for serious breaches

 

A significant implementation period of at least 24 months has been planned before the Act fully comes into force. This allows time for:

·        The SIA to establish its new regulatory function

·        Duty holders to understand and plan for their obligations

·        Official guidance to be developed and published

 

This phased approach aims to ensure proportionate expectations on venues while giving organisations adequate preparation time.

 

Key requirements for duty holders

While guidance will be published in 2026, the core obligations under Martyn’s Law include:

1. Risk Assessment

Duty holders must assess terrorismrelated threats appropriate to their premises or event - particularly for enhanced-duty settings.

 

2. Public Protection Procedures

Clear procedures for:

·        Evacuation routes

·        Shelterinplace options

·        Immediate response actions

·        Communication with staff, public, and emergency services

 

3. Training

Staff must receive training proportionate to the tier they fall under. Standard duty requires basic awareness; enhanced duty requires more robust training.

 

4. Security Planning

Enhanced-tier venues must develop formalised plans to reduce vulnerabilities - for example, reviewing access points, developing searching protocols, or adjusting layout to deter hostile reconnaissance.

 

5. Collaboration with Authorities

Duty holders must coordinate with law enforcement and emergency services to ensure shared situational awareness and joint planning where required.

 

Impact on different sectors

 

Hospitality, Leisure, and Entertainment

These sectors will be among the most affected, particularly large venues hosting concerts, sports events, or nightlife activities. Many already have security processes in place, but Martyn’s Law formalises and standardises requirements.

 

Retail and Commercial Landlords

Large shopping centres and retail parks may fall under standard or enhanced duty. Landlords of public-private spaces must consider new responsibilities, though most office-based properties are excluded.

 

Education

Schools (primary, secondary) and childcare facilities fall under standard duty only. Universities may be subject to enhanced duty depending on occupancy.

 

Places of Worship

Always included, regardless of size, but only at standard duty.

 

Special Measures Categorisation
Certain settings may be placed under ‘special measures categorisation’ where their vulnerability or the presence of children requires additional oversight. Education and early years providers always fall within the Standard Duty, but special measures may be applied if risk assessments highlight increased vulnerabilities, complex site layouts, or regular large events. In such cases, regulators may require closer monitoring or strengthened procedures to ensure security measures remain practical, proportionate, and aligned with safeguarding responsibilities. More information can be found at the SIA's (Security Industry Authority), link in resource section below.

 

Future guidance and implementation

Much of the detailed operational guidance is still in development and expected during the implementation period. Both government and industry bodies (e.g., G4S) have emphasised that duty holders should begin preparing now - even informally - while awaiting the finalised guidance.

 

The government has signalled its intention for guidance to be:

·        Clear and accessible

·        Not requiring specialist expertise

·        Not mandating thirdparty products or services

·        Supported by tools, templates, and training packages

 

Conclusion

Martyn’s Law represents a major shift in the UK’s approach to counterterrorism resilience. By introducing proportionate duties, improving preparedness, and creating consistency across public venues, the Act seeks to ensure that the devastating failures seen during the Manchester Arena attack are not repeated.

 

While the full requirements will roll out gradually over the next two years, the direction is clear: public safety and preparedness are now statutory responsibilities, not optional measures. The success of Martyn’s Law will depend on collaboration between government, regulators, venues, and security professionals - anchored in the collective commitment to prevent future tragedies.

 

Resources

Martyn’s Law – Factsheet Gov https://homeofficemedia.blog.gov.uk/2025/04/03/martyns-law-factsheet/

https://www.gov.uk/government/publications/martyns-law-the-sias-new-regulatory-role/martyns-law-the-sias-new-regulatory-role

Protect UK - https://www.protectuk.police.uk/martyns-law

Protective security and preparedness for education settings - https://www.gov.uk/government/publications/protective-security-and-preparedness-for-education-settings

Martyn's Law: the SIA's new regulatory role: https://www.gov.uk/government/publications/martyns-law-the-sias-new-regulatory-role/martyns-law-the-sias-new-regulatory-role


Comments

Popular Posts

Guidance | Keeping Children Safe in Education (September 2025)

Legislation | Understanding the Children’s Acts: A comprehensive guide for all sectors

Guidance | Early Years Foundation Stage – Part 3 (September 2025)