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Assessing the benefits of body-worn video on officer and subject behaviour

This RCT will test the impact of body-worn video on public order arrests, officer assaults, use of force and complaints.

Key details

Lead institution
Principal researcher(s)
Simon Allen
Police region
East Midlands
Collaboration and partnership

Nottinghamshire Police.

Project start date
Date completed


To understand whether the introduction of body-worn video has an effect on officers or subjects, in particular whether participants will succumb to the observer effect.

Geographical area


Target sample size


Participants - inclusion criteria

Police officer – response constables and sergeants



Study design

Basic RCT comparing treatment group to control group across the entirety of Nottinghamshire Response Officers. Will include surveys and focus groups.

Outcome measures

  • Statistical analysis of use of force.
  • Complaints.
  • Officer injuries.
  • Officer assaults.
  • Public order arrests.
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