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Project: Policing Extremism

Monday 10 August 2020



Police forces are on the frontline in combating extremism, confronting a span of offences affected by extremist attitudes from hate incidents and online abuse of Members of Parliament through to terror attacks. COVID-19 adds a new dimension to this challenge, with the long-term implications of lockdown for radicalisation still unclear.

Crest is seeking to explore how “extremism” is policed through the prisms of these different offences, identifying examples of best practice to scale up, and exploring options for reform at a national level, intended to drive a more integrated and effective policing response to a rapidly changing problem.



There is widespread consensus that extremism is a growing problem in our society, yet the evidence base around how it is policed remains sparse and under-explored. In particular, we do not fully understand the impact that recent changes in extremist methodologies and attitudes have had upon policing practice. Similarly, there is little information in the public domain to assess the effectiveness of local police forces in identifying and responding to extremism, whether online or within the community.

This programme of research sets out to investigate these questions in more depth, using a combination of statistical analysis, deliberative research and fieldwork to fill out the gaps in our knowledge. The ultimate aim is to inform the Police's attempts to understand and therefore effectively respond to extremism, and to identify where new practice or tools might be required.

What are we looking at?


Our research has been split into two phases:

Mapping the landscape: this phase (now completed) involved a detailed review of the national evidence on changes in the scale and nature of extremism, incorporating both quantitative and qualitative sources of information. This review analysed trends in extremism as it presents to police. As a result, it was firstly necessary to identify what extremism means in a policing context. A series of in-depth interviews with senior practitioners from across the criminal justice system and third sector, including faith organisations, assisted in this endeavour, and helped to fill out gaps in the knowledge base. Using this review, we identified a series of research hypotheses surrounding the policing of extremism.

Engaging the frontline: these hypotheses are now being tested through partnerships with a range of police forces. Our work with these forces focuses on the breadth of offences (from hate crime through to terrorism), and combines analysis of local data with interviews with policing representatives from a number of different ranks. We are also seeking to engage with a range of stakeholders affected by the policing of extremism, from high-profile targets of extremist abuse through to reformed extremists and members of the public.

Once we have completed our fieldwork and analysis, we will convene key stakeholders and decision-makers to discuss our findings. Our conclusions and recommendations will be published in a final written report.

As part of the project, we are also writing a series of articles based on our research. The first of these will explain what we know about the scale and nature of extremism, and relevant changes over recent years. A second is intended to focus on evidence from social media of the link between toxic online discourse and real-world extremism.

How you can get involved


Crest is eager to engage with and hear from stakeholders from across policing and the third sector, in order to gain an extensive evidence base to guide our conclusions. At this stage, there are three key ways you can get involved:

  1. Share your views/research/experiences: If you wish to share your views, or if you would be interested in contributing more extensively to our research, please contact Callum Tipple at

  2. Partner with us: We are already working in partnership with a number of police forces but are keen to develop a stronger understanding of local data and insights on extremism. If you’re interested in your area getting involved, please contact Callum Tipple at

  3. Sign up to our newsletter: In the coming months, we will be publishing a series of articles focusing on different aspects of the project - sign up to our newsletter to be kept informed.


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