The UK events industry is entering a new era of legal responsibility with the introduction of Martyn’s Law – officially known as the Terrorism (Protection of Premises) Act 2025.

Named in memory of Martyn Hett, who tragically lost his life in the Manchester Arena attack in 2017, the law aims to improve public safety by requiring venues and organisers to introduce higher standards of security and improve safety procedures.

For event professionals planning conferences, exhibitions, receptions or corporate hospitality, understanding and complying with Martyn’s Law is crucial – not only for guest safety, but also for meeting the new legal obligations.

What is Martyn’s Law?

Martyn’s Law introduces a legal duty for certain venues and events to assess and mitigate the risk of terrorism. 

The Security Industry Authority (SIA) will provide guidance and also inspect and enforce the new rules. Serious breaches could result in significant fines.

There will be a minimum two-year adjustment period before enforcement begins, allowing time for the set-up of the SIA and for businesses to adapt to the changes.

Who does it apply to?

The standard tier covers premises and events with a capacity of between 200 and 799 people. 

Stand tier venues must:

• Carry out a foundational terrorism risk assessment
• Develop basic procedures to protect the public, for example, evacuation and lockdown
• Provide terrorism response training for staff.

Venues and events with a capacity of less than 200 people aren’t legally required to comply, but we believe it’s good practice to do so voluntarily. 

The enhanced tier applies to premises or qualifying temporary events (such as corporate festivals or outdoor exhibitions) with a capacity of 800 people and above.

Enhanced tier venues must:

• Carry out and document an extensive terrorism risk assessment 
• Develop and maintain a more detailed security plan, including measures such as bag searches and CCTV
• Appoint a designated senior officer accountable for security.

What should event professionals do?

To protect your guests and your business, we recommend you:

• Collaborate closely with venues – request copies of risk assessments and security plans, and check your own plans align

• Add contractual safeguards – include a clause confirming the venue’s compliance with Martyn’s Law in venue contracts

• Check your insurance – ensure your policies provide adequate cover in light of the new requirements

• Review your suppliers – check that all vendors follow relevant security procedures.

• Check the UK government’s Home Office website regularly for the latest information and guidance.

Making events safer, together

Martyn’s Law represents a significant shift for the industry, but one with a clear purpose: to protect lives. 

By taking proactive steps now, we can build a stronger, safer foundation for UK events and reinforce confidence amongst delegates, clients and the public.

If you have any questions about event security – or would like some help planning your business events – please contact the Kina Events team on 0207 205 7901 or send us an email.

Please note: this blog post is for general information only. Kina Events is not a legal advisor, and we recommend seeking professional legal guidance to understand how Martyn’s Law applies to your specific circumstances.