--- - |2 Abstract Numerous recent encounters between police officers and Black citizens have resulted in the deaths of African American men and have drawn renewed public scrutiny of police practices. We examine the public's attributions about these encounters. Does the public perceive violent confrontations between police officers and Black citizens as a result of broader problems in police practices or simply as isolated incidents? We employ attribution theory and social identity theory to understand how social and political identities influence beliefs about police use of force against African Americans. We argue that racial and political identities predispose individuals to believe certain attributional perspectives over others. We test several hypotheses using individual level survey data from two national surveys. Our findings suggest that racial and political identities strongly shape attributions, and these patterns have implications for public trust in government institutions and the ability of police to operate effectively. We conclude with recommendations for police and policymakers. - Analyses of Social Issues and Public Policy, Volume 17, Issue 1, Page 358-378, December 2017.