What is Radicalisation?

The government's Prevent Duty Guidance defines radicalisation as "the process by which a person comes to support terrorism and extremist ideologies associated with terrorist groups".

Factors which may contribute to vulnerability

Individuals can be drawn into the process of radicalisation in a number of ways. In this context, vulnerability means individuals who, because of their circumstance, experiences or state of mind can be led towards a terrorist ideology.

Below are some factors which may contribute to vulnerability:

Diagram showing factors which may contribute to vulnerability

With thanks to Salam Arabi-Katbi (Prevent Regional Coordinator, South-West England)


The Let's Talk About It website also has some information on potential factors which may contribute to vulnerability.

What materials should we be concerned about?

The internet is used by some people to promote terrorism and extremism. You can challenge and report terrorist and extremist content you find online, which you feel is offensive, or illegal. Examples of material that may be of concern include:

  • articles, images, speeches or videos that promote terrorism or encourage violence
  • content encouraging people to commit acts of terrorism
  • websites made by terrorist or extremist organisations
  • videos of terrorist attacks

For more information about how to report illegal online content, click here.

Proscribed organisations

The government has created a list of terrorist groups or organisations banned under UK law.

An organisation may be proscribed if it meets the following criteria:

  • commits or participates in acts of terrorism
  • prepares for terrorism
  • promotes or encourages terrorism
  • is otherwise concerned in terrorism

The list of proscribed terrorist groups can be found here.

What the Legislation says

Sections 1 and 2 of the Terrorism Act 2006 include detailed information about what may be considered encouragement of terrorism, or dissemination of terrorist publications.

The Terrorism Act 2006 can be viewed here.

Part 5 of the Counter-Terrorism and Security Act 2015 focuses on the risk of being drawn into terrorism and how this may be prevented.

The Counter-Terrorism and Security Act 2015 can be viewed here.