Martyn's Law and your festival app

The Terrorism (Protection of Premises) Act 2025 — Martyn's Law — received Royal Assent in April 2025. Enforcement is expected to begin in spring 2027; the Home Office will confirm the exact date ahead of when this happens, so dates may move. That makes 2027 the first season under it.

The Act's tiers: standard tier covers premises where 200–799 people may be present; enhanced tier is 800 or more. A qualifying event needs 800+ at the same time and entry checks — tickets, payment or membership — so a completely free, unticketed event may fall outside the definition entirely. If your event is enhanced tier, you'll know.

Four public protection procedures

Every qualifying premises and event must plan and deliver four procedures:

The enhanced tier adds measures covering monitoring, pedestrian flow, physical security and information security. The tier distinction matters: standard tier notifies the SIA who the responsible person is; enhanced tier notifies and sends the documented procedures and measures.

An app is relevant to one of those four. Communication.

One documented channel to your attendees

Half of it is true — worth knowing which half

You'll have heard apps described as working when the network doesn't. Half of that is true and it's worth knowing which half.

Information already on the phone works with no signal at all. Your schedule, your site map, where the exits are, what to do — none of it needs a connection, because it was downloaded before your attendee walked through the gate.

An alert is different. An alert has to arrive, and arriving needs a connection. Nobody's app can change that, including ours. What we can tell you is that an alert is a few hundred bytes travelling over a connection the phone already holds open, so it gets through congestion that stops a web page loading — and festival coverage is usually degraded rather than gone. If a phone is offline when you send, the message is held and delivered when that phone reconnects. Once it lands, it stays on the device even if signal drops again.

So: the information is on the phone. The alert needs a connection but stands a better chance of getting through than anything else your attendee is carrying. We won't offer you a delivery guarantee, and you should be sceptical of anyone who does.

Not a compliance product

This is not a compliance product and we won't sell it as one. It doesn't write your procedures, train your staff or notify the SIA. It doesn't replace your PA, your radio network, your stewards or your signage. The duty sits with you as the responsible person. What we offer is one documented channel to your attendees, and evidence of how it performed.

Safety information everyone can read

The app is built to be read by a screen reader. At We Out Here 2026 a blind attendee told us it was the only festival app his screen reader could handle. Safety information that some of your attendees can't read isn't safety information.

Built to fit your event

Price list on request — tailored to the size of your event, with no subscriptions and no per-user fees.