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Last updated 15 October 2026

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NameWhat it doesLasts
sidSet on your first visit. It protects our forms against cross-site attacks, keeps you logged in when you sign in and remembers, on a staff phone used for tap-to-log, that the venue PIN was entered correctly (for 14 days, or until the venue changes its PIN).Up to 30 days after your last visit
sk_chat_v1 (local storage)Only once you start a live chat: keeps the conversation open as you move between pages (see Live chat).Cleared the next time you visit after 24 hours without using the chat, or straight away when you choose "Start a new chat"
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MUSTER

Every test logged. Everyone accounted for.

A fire safety log book for small UK venues - and calm, practical help getting ready for Martyn's Law.

Product

  • Tap to log
  • Pricing
  • Try the staff demo
  • Open my fire log book

Guides

  • Find your Martyn's Law tier
  • Martyn's Law explained
  • Fire safety log book guide

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© 2026 Muster is a trading name of Highfold Group Ltd (company number 17521208, registered in England and Wales). Registered office: Office 21848, 182-184 High Street North, East Ham, London, E6 2JA. Guidance and record-keeping software - not legal advice.