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Using community impact statements for knife crime

Statements that highlight the wider impact of knife crime on local communities and can be used as evidence to support prosecutions.

First published

Key details

Does it work?
Untested – new or innovative
Criminal justice
Offender management
Violence (other)

Rob Ranstead

Email address
Criminal justice (includes prisons, probation services)
Stage of practice
The practice is implemented.
Scale of initiative
Target group


  • To highlight the impact of knife crime in local communities.
  • To reduce the number of no further action (NFA) files for knife crime.
  • To maximise positive criminal justice outcomes for knife crime offences.

Intended outcome

  • A reduction in the number of NFA files for knife crime offences.
  • Increased understanding around the public and community impact of knife crime.
  • Increased trust and confidence in the police.


Community impact statements are written to support the evidential test for charging in knife crime cases. They aim to remind prosecution decision makers of the impact that knife crime has on wider communities.

The Metropolitan Police Service (MPS) has developed and used 12 knife crime community impact statements. The statements are written by basic command unit (BCU) commanders or their deputies. They are updated every 12 to 18 months to ensure they reflect the most up-to-date knife crime statistics and current community feelings. The statements are posted on the force intranet for investigators to use.

The statements vary in length depending on the BCU but are usually around two pages. They typically include:

  • the views of local stakeholders such as schools and neighbourhood officers
  • statistics surrounding knife crime in the local area
  • evidence on the links between knife crime and other crimes (for example, illegal drugs, youth violence and gang culture)

Once written by the BCU commander, the statements are quality assured by the chief inspector with responsibility for the statements before being posted on the force intranet.

Knife crime community impact statements require minimal budget or resource to set up or operationalise. The only requirement is a dedicated lead to drive the statements forward, provide direction and guidance to those writing the statements, and lead on their publication and marketing on the force intranet.

Overall impact

Statements have now been taken from all BCUs in the MPS.

The initiative was also shared in the College of Policing’s Going equipped – see Tackling knife crime with local communities.

Early analysis suggested that the original BCUs using knife crime community impact statements had an increase in positive outcomes for charges made for knife crime offences. There appeared to be an increase in positive outcomes by up to 9% when comparing prosecutions from BCUs that had these statements to those that did not during the phased introduction. However, this analysis was not able to consider other influencing factors.

The impact statements remind prosecutors of the broader impact that knife crime has on communities. The statements also highlight to prosecutors the level of importance placed on tackling knife crime by MPS senior leadership teams.


  • The statements do not require a big budget or many resources. The key to success in the MPS has been keeping them updated and encouraging their use.
  • Statements may need to be checked after writing to ensure suitability and also for key information such as spelling, dates and signatures.
  • Early engagement with investigators is crucial to ensuring they are considered as part of the evidence.
  • Internal marketing is needed to ensure these statements are used by investigators. This marketing may include placing posters in custody and providing links on internal blogs.

Best available evidence

Currently the crime reduction toolkit does not include any best-available evidence on using community impact statements to support knife crime prosecutions.

See Knife crime – a problem solving guide for practical and evidence-informed advice on how to reduce local knife crime.


The copyright in this shared practice example is not owned or managed by the College of Policing and is therefore not available for re-use under the terms of the Non-Commercial College Licence. You will need to seek permission from the copyright owner to reproduce their works.

Legal Disclaimer

Disclaimer: The views, information or opinions expressed in this shared practice example are the author's own and do not necessarily reflect the official policy or views of the College of Policing or the organisations involved.

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