Terrorism law
Produced in partnership with Imogen Proud of Monckton Chambers and Eric Metcalfe of Monckton Chambers
Terrorism law

The following Public Law guidance note Produced in partnership with Imogen Proud of Monckton Chambers and Eric Metcalfe of Monckton Chambers provides comprehensive and up to date legal information covering:

  • Terrorism law
  • The statutory definition of terrorism
  • Terrorism offences
  • Other powers
  • Duties under terrorism legislation
  • Successful challenges to terrorism powers under HRA 1998

The law relating to terrorism in the UK is spread across both common law and statute and includes both a wide range of criminal offences and civil powers.

The Terrorism Act 2000 (TA 2000) was originally intended to be a comprehensive framework for counter-terrorism powers. Since the 9/11 attacks, however, the TA 2000 has been amended and supplemented by a number of further statutes:

  1. Anti-terrorism, Crime and Security Act 2001 (ACSA 2001)

  2. Prevention of Terrorism Act 2005 (PTA 2005)—subsequently repealed by the Terrorism Prevention and Investigation Measures Act 2011, s 1 (see below)

  3. Terrorism Act 2006 (TA 2006)

  4. Counter-Terrorism Act 2008 (CTA 2008)

  5. Terrorist Asset-Freezing etc Act 2010 (TAFA 2010)

  6. Terrorism Prevention and Investigation Measures Act 2011 (TPIMA 2011)

  7. Protection of Freedoms Act 2012 (PFA 2012)

  8. Justice and Security Act 2013 (JSA 2013)

  9. Counter-Terrorism and Security Act 2015 (CTSA 2015)

The statutory definition of terrorism

Section 1 of TA 2000, as amended, defines 'terrorism' as:

  1. the use or threat of action where the action:

    1. involves serious violence against a person

    2. involves serious damage to property

    3. endangers a person's life, other than that of the person committing the action

    4. creates a serious risk to the health or safety of the public or a section of the public, or

    5. is designed seriously to interfere with or seriously to disrupt an electronic system

  2. the

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