Brandon Garrett, a professor at the University of Virginia School of Law, said 13 of the 16 DNA exonerations in Virginia involved eyewitness misidentifications. In response, in 2005 the state legislature required all police agencies to adopt written policies for lineups, and the Department of Criminal Justice Services adopted a model lineup policy with best practices. The department revamped its model policy beginning in 2011 to strengthen it and provide easy options for smaller agencies to do lineups that minimize error. Garrett said that despite the new model policy, few agencies have adopte...