Join WhatsApp group

Support for a proscribed organisation

Terrorism and security — practical elements, sentencing links and station notes for accredited reps in England & Wales.

Terrorism and security

Support for a proscribed organisation

Terrorism Act 2000, s.12

England & Wales. Elements, mode of trial, maximum and defences — not a charging or outcome predictor.

Triable
Either way
Maximum penalty
14 years’ custody

Actus reus

  • Invites support for a proscribed organisation, or arranges/assists in arranging a meeting to support it, or addresses a meeting to encourage support (TA 2000, s.12 — read the charged subsection). Expressing an opinion is not enough on its own unless the subsection is met.

Mens rea

  • The support/meeting/address mental element in the charged subsection. Recklessness as to encouragement appears in some s.12 limbs after later amendment — read the current text.

Defences

Organisation not proscribed · Conduct not within the charged s.12 limb · Statutory meeting defence if it applies (s.12(2A) and following — read before relying on it)

Sentencing Council

Sentencing Council guideline effective 01 October 2022. Offence range: High level community order – 13 years’ custody.

View definitive guideline ↗

At the police station

Speeches and social-media posts still have to match a subsection. Solicitor used to TA procedure.

When to involve a rep or solicitor

Police station advice is free under legal aid and is not means-tested. Terrorism Act detention needs a solicitor used to TA procedure.

Authoritative sources for this page

Statute plus Sentencing Council (and CPS where listed) are the two primary sources we used for mode of trial, maximum and elements. Case links are from our verified registry only.

More in Terrorism and security

Back to the full offences index

Sources & further reading

Links are to official publishers (legislation, gov.uk, CPS, LAA, Sentencing Council). Case law on this site is limited to entries in our verified case-law registry. Always confirm the current version before relying on it in live advice.