Radicalisation is the process through which a person comes to support or be involved in extremist ideologies. It is in itself a form of harm.
Extremism was defined by the Home Office in 2011 as a vocal or active opposition to fundamental British values, including democracy, the rule of law, individual liberty and mutual respect and tolerance of different faiths and beliefs (HM Government, 2011).
In 2024, the Department for Levelling Up, Housing and Communities published a new definition of extremism for England (DLHC, 2024). Extremism is defined as the support or promotion of an ideology based on violence, hatred or intolerance that aims to:
- deny or destroy the fundamental rights and freedoms of others
- undermine or overturn the UK’s system of democracy and democratic rights
- intentionally create an environment that permits or enables others to achieve either of the above.
The new definition also set out types of behaviour which could constitute extremism, including:
- using or excusing violence towards a group of people to stop them from using their legally defined rights and freedoms
- seeking to overthrow or change the political system outside of lawful means
- using or excusing violence towards public officials, including British armed forces and police forces, to stop them carrying out their duties
- attempting to radicalise and recruit others, including young people, to an extremist ideology.
Challenging and tackling extremism needs to be a shared effort (HM Government, 2013). For this reason, the Government has given some types of organisations in England, Scotland and Wales a duty to identify vulnerable children and young people and prevent them from being drawn into terrorism.
> Find out more about the Prevent duty
Most extremist materials and activities do not meet a terrorism threshold. All organisations that work with children and young people have a responsibility to protect children from being harmed by radicalisation and exposure to extremist views.
On this page we’re sharing best practice about recognising, responding to and preventing radicalisation and extremism.