Sources
Every fact points to a public source.
The verdict is built on the Act itself and the Home Office statutory guidance, and we cite them so you can verify anything the report says. Nothing here is behind a paywall or a login. Current as at 12 July 2026.
Primary law
- Terrorism (Protection of Premises) Act 2025 (full text)
- The Act itself, ukpga/2025/10. Used for the tiers and thresholds, the duties, the responsible-person definition, and the penalty figures. Royal Assent 3 April 2025.
- Explanatory notes to the Act
- The official notes explaining the Act's provisions. Used to interpret scope, the Schedule 1 uses and the Schedule 2 exclusions.
Home Office statutory guidance and factsheets
- Home Office statutory guidance
- The published statutory guidance. Used for the standard and enhanced duties, the assessment of numbers, and the responsible-person detail. Can be updated before commencement, so re-verify near launch.
- Assessment of the number of individuals (capacity) factsheet
- How to assess the greatest number reasonably expected at the same time, including the rule that staff and volunteers count and that recurring peaks count. Used for the capacity-band logic.
- Enhanced duty requirements factsheet
- The four enhanced-tier measure areas, the mandatory tailored document, the 30-day update-and-notify rule, and the senior-individual requirement for organisations.
- Regulator, sanctions and enforcement factsheet
- The SIA as regulator, the penalty ceilings (£10,000 standard; £18 million or 5% of qualifying worldwide revenue enhanced and events), daily penalties, and the criminal offences. Used for the penalties section.
- Home Office factsheets (index)
- The full set of Home Office factsheets, including the standard duty factsheet and the overview. Used for cross-checking the duty wording.
- Home Office media factsheet (3 April 2025)
- The factsheet published on Royal Assent. Used for the implementation-period commitment (at least 24 months) and the expected spring 2027 commencement framing.
Wider guidance and enforcement development
- ProtectUK overview
- The counter-terrorism policing overview of Martyn's Law. Used as a cross-reference for the plain-English framing of the duties.
- SIA section 12 consultation news
- News that the SIA has been consulting on its section 12 guidance covering investigation and enforcement powers. Used to state that SIA process detail is still in development.
We cite public sources so you can verify. Where you need certainty about a borderline use or exclusion, take the cited source to the Act and, if the stakes justify it, to qualified counsel. This is an information tool, not legal advice.