The Greater Manchester Police procedural justice training experiment

Randomised Control Trial Status


Trial Hypothesis

The trial aimed to test the impact of communication skills training on officer attitudes, officer behaviour and victim satisfacti​on. The trial also provides useful insights on approaches to training.

Geographical area

Greater Manchester

Research Institution / Organisation

College of Policing

In Collaboration With

Greater Manchester Police

Contact Name

Levin Wheller

Project Start Date

September 2011

Participants - inclusion criteria

Serving response and neighbourhood constables in Greater Manchester Police

Target Sample Size


Study Design

​Two-group randomised controlled trial


​Officers in the treatment group received communication skills training aimed at improving their interactions with victims of crime.​

Summary of Findings

​Officer attitudes.  
Officers in the treatment group were more likely to: 

  • ​hold positive views about delivering quality of service;
  • recognise the value of building empathy and rapport with victims;
  • report making decisions in a way that was consistent with procedural justice.

Officer behaviour

  • Officers in the treatment group scored significantly higher than those in the control group on a ‘quality of interaction’ scale. 
  • A higher proportion of treatment group officers were rated ‘good or excellent’ in terms of their overall performance (48% compared to 22%).Victim perceptions
  • The intervention was found to have had a significant positive effect on a ‘quality of interaction’ scale.
  • Victims had, on average, better interactions with trained officers.


The Greater Manchester Police procedural justice training experiment: The impact of communication skills training on officers and victims of crime

Date last updated

Tuesday 26 June 2018
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