Study Finds Mixed Results on Body Camera Impact

Bloomington police say cameras are "a gamechanger" but nationwide data shows inconsistent effects on policing

Feb. 3, 2026 at 11:07pm

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According to a review by the Department of Justice, body-worn cameras have had inconsistent or no statistically significant effects on use-of-force, assaults on officers, arrests, traffic stops and other policing metrics. However, some individual departments like Boston, Las Vegas and Rialto have seen drops in citizen complaints and use-of-force after adopting the technology. Bloomington's deputy police chief says body cameras are "invaluable" for training and accountability, though they have limitations in field of view and audio capture.

Why it matters

The use of body cameras by police departments has been a major topic of debate, with proponents arguing they improve accountability and transparency, while critics raise concerns about privacy and potential misuse. This study provides a nuanced look at the real-world impacts, showing both benefits and limitations of the technology.

The details

The Department of Justice reviewed 70 studies on body-worn cameras and found inconsistent or no statistically significant effects on key policing metrics like use-of-force, assaults on officers, arrests, traffic stops and field interviews. However, some individual departments have seen positive results - Boston, Las Vegas and Rialto all reported drops in citizen complaints and use-of-force after adopting body cameras. A University of Chicago analysis found a 10% drop in use-of-force encounters at departments using the technology. Bloomington's deputy police chief says body cameras are "a gamechanger" that provide valuable evidence and training opportunities, though they have limitations in field of view and audio capture.

  • The Department of Justice review was conducted in 2022.
  • Bloomington police have used body cameras since 2019.
  • More than 100 police departments in Minnesota adopted body cameras as of a 2021 survey.

The players

Damon Bitney

Deputy Chief of the Bloomington Police Department.

Police Executive Research Firm

An organization that conducts research and provides resources for police departments.

Department of Justice

The U.S. federal executive department responsible for the enforcement of the law and administration of justice.

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What they’re saying

“It's kind of a gamechanger in what is expected of us from the public.”

— Damon Bitney, Deputy Chief, Bloomington Police Department

“When people talk about accountability, what they're basically asking, or at least how we interpret is, 'Are you trying to hide anything?' And our position is we're not.”

— Damon Bitney, Deputy Chief, Bloomington Police Department

The takeaway

The use of body cameras by police remains a complex issue, with both benefits and limitations. While some departments have seen improvements in accountability and reductions in use-of-force, the nationwide data shows mixed results. Ongoing evaluation and refinement of body camera policies and practices will be crucial as departments continue to navigate this evolving technology.