Chris Slobogin (Milton Underwood Professor of Law, Vanderbilt University and author of Privacy at Risk): “Are police-worn body cameras a panacea for the problem of police violence and abuse? Or are they simply another intrusion into privacy that only rarely definitively tells us the full truth about police-citizen interactions? Relying on numerous interviews, close scrutiny of current policy and practice, and insightful analysis of the empirical evidence and scholarship, Fan provides by far the most careful and comprehensive description to date of the controversies surrounding police use of body cameras and the optimal means of using the data they produce.”