[{"data":1,"prerenderedAt":172},["ShallowReactive",2],{"marketing-blog-blog\u002Fmartyns-law-and-the-front-door":3,"marketing-blog-related-blog\u002Fmartyns-law-and-the-front-door":153},{"id":4,"title":5,"author":6,"body":7,"category":131,"date":132,"description":133,"draft":134,"extension":135,"image":136,"imageAlt":137,"imageCredit":138,"imageCreditUrl":139,"meta":140,"navigation":141,"path":142,"readTime":143,"seo":144,"stem":145,"tags":146,"__hash__":152},"blog\u002Fblog\u002Fmartyns-law-and-the-front-door.md","Martyn's Law and the front door: knowing who is in the building","The CheckInHub team",{"type":8,"value":9,"toc":122},"minimark",[10,14,19,22,34,44,47,53,57,60,69,73,76,84,87,91,109,112,116,119],[11,12,13],"p",{},"For years the safety conversation at the front door has been about queues and fire exits. A new law widens it. The Terrorism (Protection of Premises) Act 2025, known as Martyn's Law after Martyn Hett, who was killed in the Manchester Arena attack, received Royal Assent in April 2025 and asks the people who run public venues and events to think, in advance, about how they would protect the people in front of them. It is not a security-guard mandate and it is not a box of expensive kit. For most organisers it is a duty to prepare, and the thing it quietly depends on is something you should already know: how many people are in your building, and who they are.",[15,16,18],"h2",{"id":17},"what-the-law-actually-asks-for","What the law actually asks for",[11,20,21],{},"Martyn's Law works in two tiers, and which one you fall into turns on a single number: how many people may reasonably be expected to be present at the same time.",[11,23,24,25,29,30,33],{},"The ",[26,27,28],"strong",{},"standard tier"," covers premises and events where ",[26,31,32],{},"200 to 799"," people may be present. The requirements here are deliberately simple and low cost. You put in place procedures that would reduce harm in the event of an attack, the kind of thing a well-run team can rehearse in an afternoon: how you would evacuate, how you would bring people inside and lock down if the danger is outside, how you would move people to safety, and how you would communicate it. There is no requirement to install physical security measures at this tier.",[11,35,24,36,39,40,43],{},[26,37,38],{},"enhanced tier"," covers larger premises where ",[26,41,42],{},"800 or more"," people may be present. These carry the standard-tier procedures plus, so far as is reasonably practicable, public protection measures to reduce both the vulnerability of the premises and the risk of physical harm, along with documented assessment.",[11,45,46],{},"There is no duty to comply yet. The Government has set an implementation period of at least 24 months from Royal Assent before the requirements come into force, which points to commencement around spring 2027. That gap is not a reason to wait. It is the window you have to work out which tier you are in and to make the procedures second nature before they are a legal duty (Home Office, Martyn's Law factsheet, 2025).",[48,49,50],"blockquote",{},[11,51,52],{},"The law turns on how many people are present at once. So the first compliance question is not about cameras or barriers. It is whether you actually know your number.",[15,54,56],{"id":55},"which-tier-are-you-in-really","Which tier are you in, really",[11,58,59],{},"The thresholds look clean on paper and get slippery in practice, because they hang on a capacity figure that many organisers only ever estimate. A community venue that \"usually gets a couple of hundred\" might tip over 200 on its busiest night. A conference that sells 750 tickets sits in the standard tier on paper, but add exhibitors, crew, speakers and the people who walked up, and the room it actually holds at five o'clock can be a different tier altogether.",[11,61,62,63,68],{},"This is the same trap we wrote about in ",[64,65,67],"a",{"href":66},"\u002Fblog\u002Fyour-rsvp-list-is-not-your-headcount","your RSVP list is not your headcount",". The registration list is a forecast, and a hopeful one, and it is the wrong document to set your safety planning against. What you need for Martyn's Law is the realistic peak: the most people who are genuinely in the building at the same moment, counting everyone, not just the ticket holders. Get that figure honest and the tier sorts itself out. Guess it low and you can find yourself with the wrong procedures for the room you actually have.",[15,70,72],{"id":71},"the-procedures-need-a-live-number-not-a-list","The procedures need a live number, not a list",[11,74,75],{},"Read the standard-tier requirements and a pattern shows through. Evacuate. Invacuate. Move people to safety. Account for them. Every one of those is easier, and in some cases only possible, if you can answer one question in the moment: how many people are in here right now, and have they got out.",[11,77,78,79,83],{},"A printed guest list cannot tell you that. It tells you who was invited. It cannot tell you who is still inside when the alarm goes, which is the only thing a marshal at the assembly point cares about. A live count of who has checked in against who has checked out is, in plain terms, a real-time register of the people you are responsible for. It is the difference between a head-count done on fingers in a car park and a number you can actually read. We made the case for that count in ",[64,80,82],{"href":81},"\u002Fblog\u002Fcounting-people-in-and-trusting-the-number","counting people in, and trusting the number",", long before the law gave it a second reason to exist.",[11,85,86],{},"This is not a claim that a check-in system makes you compliant. Compliance is about having and rehearsing the right procedures for your tier. It is a claim that good procedures run on good information, and the most basic piece of information any of them need is an accurate, current count of the people present.",[15,88,90],{"id":89},"the-same-data-used-twice","The same data, used twice",[11,92,93,94,98,99,103,104,108],{},"The useful thing for organisers already running a proper front door is that you are mostly there. The work you do to clear a queue in ",[64,95,97],{"href":96},"\u002Fblog\u002Fthe-eight-second-check-in-explained","about eight seconds a guest"," produces, as a by-product, exactly the live register the procedures want. The access tiers you set so that crew, contractors and the public go through the right lanes, which we covered in ",[64,100,102],{"href":101},"\u002Fblog\u002Faccess-control-basics-for-event-organisers","access control basics for event organisers",", are the same controls that let you say with confidence who should be where. And the record of who came and went, the subject of ",[64,105,107],{"href":106},"\u002Fblog\u002Fan-audit-trail-you-can-actually-read","an audit trail you can actually read",", is what lets you reconstruct the day afterwards if anyone ever has to.",[11,110,111],{},"So the honest framing is this. Martyn's Law is a planning and procedures duty, and the planning starts with a number. If your front door already counts people in and out accurately, you have the foundation the procedures stand on, and the next 24 months are about writing down what you would do and practising it, not buying your way to readiness.",[15,113,115],{"id":114},"what-to-do-with-the-window-you-have","What to do with the window you have",[11,117,118],{},"Three steps fit in the time before commencement, none of them expensive. Work out your realistic peak attendance and check it honestly against the 200 and 800 lines, because that decides everything else. Write your procedures for the tier you land in: evacuation, invacuation, lockdown and communication for the standard tier, with the added measures and assessment if you reach the enhanced one. And make sure the people on the day can see, at any moment, how many are inside and who has left, because a procedure you cannot act on is just a document.",[11,120,121],{},"CheckInHub runs that front door: the scans, the access lanes and the one live number everyone shares, so the count your safety plan depends on is the real one rather than a wish on a clipboard. The law will arrive on its own timetable. The number it asks for is one you can start trusting today.",{"title":123,"searchDepth":124,"depth":124,"links":125},"",2,[126,127,128,129,130],{"id":17,"depth":124,"text":18},{"id":55,"depth":124,"text":56},{"id":71,"depth":124,"text":72},{"id":89,"depth":124,"text":90},{"id":114,"depth":124,"text":115},"Security & data","2026-06-30","The Terrorism (Protection of Premises) Act 2025 turns on how many people are present at once. What the standard and enhanced tiers ask for, and why an honest, live headcount is the quiet foundation under the procedures.",false,"md","https:\u002F\u002Fimages.unsplash.com\u002Fphoto-1633358050629-bb6a292616ff?ixlib=rb-4.1.0&w=1600&q=80&auto=format&fit=crop","A crowd of people gathered at a busy indoor event","Kajetan Sumila","https:\u002F\u002Funsplash.com\u002F@kajtek?utm_source=checkinhub&utm_medium=referral",{},true,"\u002Fblog\u002Fmartyns-law-and-the-front-door",6,{"title":5,"description":133},"blog\u002Fmartyns-law-and-the-front-door",[147,148,149,150,151],"security","access control","live count","compliance","attendee data","ULAKtcr3BvIfHxFZLN9kg0CL6iMdYpJYPH94DRo3fNc",[154,160,166],{"to":155,"title":156,"description":157,"date":158,"category":131,"image":159,"readTime":143},"\u002Fblog\u002Fworking-with-the-venues-security-team","Working with the venue's security team at your front door","Your check-in desk and the venue's security team are running the same door with different lists. How to brief them, where the handover goes wrong, and the one number both sides need to agree on.","2026-07-26","https:\u002F\u002Fimages.unsplash.com\u002Fphoto-1762474293029-6a7f3698312c?ixlib=rb-4.1.0&w=1600&q=80&auto=format&fit=crop",{"to":161,"title":162,"description":163,"date":164,"category":131,"image":165,"readTime":143},"\u002Fblog\u002Fcounting-people-out-not-just-in","Counting people out, not just in","Most front-of-house effort goes into getting people through the door. Far fewer teams can say, at the end of the night, that the building is actually empty. Here is how to make departures as reliable as arrivals, and why it is about to matter more.","2026-06-25","https:\u002F\u002Fimages.unsplash.com\u002Fphoto-1540039155733-5bb30b53aa14?ixlib=rb-4.1.0&w=1600&q=80&auto=format&fit=crop",{"to":167,"title":168,"description":169,"date":170,"category":131,"image":171,"readTime":143},"\u002Fblog\u002Fkeeping-the-guest-list-the-guest-list","Keeping the guest list the guest list","A guest list is personal data the moment you collect it. How to hold it responsibly without slowing down the door or drowning in compliance.","2026-04-24","https:\u002F\u002Fimages.unsplash.com\u002Fphoto-1518186285589-2f7649de83e0?ixlib=rb-4.1.0&w=1600&q=80&auto=format&fit=crop",1787334027075]