Studies on body camera adoption have found mixed but generally positive effects on both officer accountability and reductions in use-of-force complaints in departments that implemented them well. Departments that paired cameras with clear, consistently enforced policies on when footage would be reviewed saw the strongest results, while unclear policies sometimes blunted the technology's accountability benefits. This suggests implementation details, not just the cameras themselves, drive outcomes. Advocates argue investing in proper implementation, not just the technology itself, is key to real accountability gains.