The enhanced tier
800 or more people, and a materially bigger set of duties. Who falls into it, what it adds, and the order of work that saves money.
It is not your fire capacity
“Reasonable to expect that 800 or more individuals may be present at the same time, from time to time.”
It is not the maximum the building could hold and it is not a typical day. It is what may reasonably be expected from time to time, so the busiest realistic occasion counts, and staff count towards the number.
There is a second route in. Under section 3 an event can be a qualifying event where the public have access for the purpose of attending, entry is controlled by ticket, payment or membership, and 800 or more may be present at the same time. A venue that is standard tier day to day can host an event that is not.
Education settings are the exception: childcare, early years, primary, secondary and further-education premises are standard duty premises regardless of numbers. Higher education has no such protection.
Checked against source on 25 September 2026
Martyn’s Law is not yet in force. This page reflects the position on 25 September 2026 and is reviewed by 24 December 2026. It is general information, not legal advice — see our status page for what has and has not commenced.
Three duties beyond the standard tier
In addition to the section 5 procedures, not instead of them.
Measures (s.6)
Assess and keep under review appropriate public protection measures across four categories — monitoring the premises and their immediate vicinity, the movement of individuals, physical safety and security, and the security of information — and so far as reasonably practicable put them in place.
A document (s.7)
A statement of procedures and measures with an assessment of how each may be expected to reduce risk and vulnerability, given to the SIA, and any revision within 30 days.
A designated senior individual (s.10)
Where the responsible person is an organisation, someone in its management or control must be designated as responsible for compliance.
Larger penalties
Section 18 sets the maximum at £18 million or 5% of qualifying worldwide revenue, whichever is greater. Not commenced.
What section 6 asks for, and what contributes
The Act names categories, not products. It does not require a camera, and no camera satisfies it. This is our reading of how a physical security system contributes — take your own advice on your own premises.
| Category | What contributes | What still sits with you |
|---|---|---|
| Monitoring the premises and their vicinity | Coverage of the approaches and boundaries, not just the tills and corridors, reviewable centrally. | It does not monitor anything by itself. Someone has to be looking, or be alerted. |
| Movement of individuals | Access control on the doors that matter, visitor management, an intercom at the entrance, and the ability to secure doors quickly. | It does not decide who should be allowed where. That is your policy. |
| Physical safety and security | Door hardware designed alongside the fire strategy, alarm detection with visual verification, lighting. | It does not prevent an attack, and nobody should tell you it does. |
| Security of information | Controlling who can see site plans, camera layouts, key-holder lists and procedures. | It does not classify your information for you. |
The fourth category is the one everybody forgets and the cheapest to act on. Restricting who can see your camera plan costs nothing.
Six questions to settle first
Before you look at any product, including ours.
- What is the largest number of people, staff included, reasonably expected at the same time, from time to time?
- Does that figure account for function rooms, terraces, event space and back of house simultaneously?
- Do you run ticketed or membership-controlled events where 800 or more may be present?
- Is the premises used mainly for a Schedule 1 use, and is any part excluded by Schedule 2?
- Across an estate, which specific premises cross the threshold? It is rarely all of them.
- Who is the responsible person for each, and who would be the designated senior individual?
The four measures the Act names — and what each one is in practice
This is the part of the Act that describes physical security, and it is the only part that does. Section 6(3) lists monitoring the premises and their immediate vicinity, movement of individuals, physical safety and security, and the security of information. Nothing here is required of a standard-tier premises, and none of it is in force yet.
Monitoring the premises and vicinity
The wording reaches past your boundary to the immediate vicinity, which is why the approach, the queue and the car park are in the conversation for enhanced premises — and why coverage is designed outward rather than inward.
Movement of individuals
Who can go where, and when. In practice this is access control with a record: public areas, staff areas, plant and back of house separated, and rights that expire on their own.
Physical safety and security
Doors, glazing, barriers and the ability to secure or release them under instruction. Free egress is never traded away for it.
Security of information
The least discussed and most failed category. Who can see your footage, your plans and your door records, from where, and what happens to that access when they leave.
A caution worth repeating: no product satisfies section 6 by itself. The Act asks you to consider what is appropriate for your premises, and a supplier who tells you a purchase discharges the duty has not read it. What is actually in force today →
This is not legal advice
Everything on this page is general information about the Terrorism (Protection of Premises) Act 2025, taken from legislation.gov.uk and published Home Office, SIA and Department for Education guidance. It is not legal advice and not a substitute for professional security or emergency-planning advice about your own premises. No product or installation can make an organisation compliant with the Act.
Sources
Everything on this page is taken from these. Checked 25 September 2026.
- Section 2 — qualifying premises and the two tiers
- Section 3 — qualifying events
- Section 6 — public protection measures (enhanced tier)
- Section 7 — documenting compliance (enhanced tier)
- Section 10 — designated senior individual
- Section 18 — maximum penalty amounts
- Terrorism (Protection of Premises) Act 2025: statutory guidance (Home Office)
- Terrorism (Protection of Premises) Act 2025: overarching factsheet (Home Office)
- Understanding Martyn's Law and the SIA's role as regulator
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