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Objectives <p>This study aimed to assess whether police use of body-worn cameras (BWCs) affects officer discretion and court outcomes.</p> Method <p>Study 1 (<i>n</i> = 6298) and Study 2 (<i>n</i> = 7229) are quasi-experimental field trials comparing officer ticketing behaviour and court outcomes for tickets based on BWC use.</p> Results <p>BWC use did not significantly affect tickets issued or whether a speeding ticket was reduced. BWC tickets were resolved 25&#xa0;days faster than non-BWC tickets. BWC tickets were more likely to result in a guilty verdict, but tickets can be resolved at three stages and BWC use did not consistently affect the likelihood of a guilty verdict at any stage individually.</p> Conclusion <p>BWCs did not significantly affect officer discretion and had limited effects on court outcomes. This may be because footage can contain evidence or just document officer activities. A labelling system distinguishing between asset and evidentiary footage would increase the value of BWCs in court.</p>

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The impact of body-worn camera footage on prosecution outcomes for tickets

  • 期刊论文

  • 发表日期：

    2025年9月13日

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  • Alana Saulnier,
  • Joseph McDermott,
  • Daniel Brian Krupp,
  • Daniel Konikoff

摘要

Objectives

This study aimed to assess whether police use of body-worn cameras (BWCs) affects officer discretion and court outcomes.

Method

Study 1 (n = 6298) and Study 2 (n = 7229) are quasi-experimental field trials comparing officer ticketing behaviour and court outcomes for tickets based on BWC use.

Results

BWC use did not significantly affect tickets issued or whether a speeding ticket was reduced. BWC tickets were resolved 25 days faster than non-BWC tickets. BWC tickets were more likely to result in a guilty verdict, but tickets can be resolved at three stages and BWC use did not consistently affect the likelihood of a guilty verdict at any stage individually.

Conclusion

BWCs did not significantly affect officer discretion and had limited effects on court outcomes. This may be because footage can contain evidence or just document officer activities. A labelling system distinguishing between asset and evidentiary footage would increase the value of BWCs in court.