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Black Sky

Sirius Security Ltd can support your business

Lockdown System 
We can help you meet the security requirements set out under Martyn’s Law by providing expert advice and professional installation of compliant security solutions. We offer tailored packages to help your organisation enhance your protective measures in line with current legislation.

Our experienced team ensures all installations are carried out to a high standard, helping you demonstrate preparedness, strengthen safety, and work towards full regulatory compliance.

What is it

 

Martyn’s Law (also known as the Protect Duty) is UK legislation designed to improve public safety by requiring certain venues and organisations to take steps against the threat of terrorism.

 

It’s named after Martyn Hett, one of the victims of the 2017 Manchester Arena attack.

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Here are the key aspects of Martyn’s Law (based on the draft legislation):

 

Blue colour coded break glass to initiate a lockdown siren
announcer to confirm the lockdown is in force and issue advice
combined siren and beacon blue coloured to distingiush the emergency
Blue flashing warning light to recognise lockdown over other emergencies

Who it applies to

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  • Public venues with a capacity of 100 people or more (e.g. shops, bars, restaurants, entertainment venues, sports grounds, places of worship, hospitals, etc.).

  • Large organisations (such as retail chains) with publicly accessible locations.

  • Events that meet the threshold.

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Risk-based tiers

The law has two main tiers of requirements depending on the size and capacity of the venue:

  • Standard Tier (100–799 capacity):

    • Must provide staff training on terrorism awareness and response.

    • Need to have a basic plan to respond in the event of an attack.

  • Enhanced Tier (800+ capacity):

    • Must carry out and keep updated a detailed terrorism risk assessment.

    • Develop and maintain a security plan proportionate to the risks.

    • Implement reasonable and proportionate security measures, which could include bag searches, CCTV, access control, or barriers.

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Training and awareness

Staff must be trained to recognise and respond to suspicious activity or a terrorist incident (e.g., evacuation procedures, lockdown, communications).

 

Preparedness and planning​

Organisations must have a plan for:

  • How to respond in the event of an attack.

  • How to communicate with the public and emergency services.

  • Evacuation and lockdown procedures.

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Enforcement and penalties​

  • Local authorities and regulators will enforce compliance.

  • Penalties may include fines for failing to meet requirements.

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Proportionality​

Measures are intended to be proportionate to the size and nature of the venue – not “one size fits all.” Smaller venues won’t face the same burden as large arenas.

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