The New Orleans Office of Inspector General (OIG) evaluated policies and practices of the New Orleans Police Department (NOPD), the Orleans Parish Sheriff’s Office (Sheriff), the New Orleans Municipal Court, and the City Attorney’s Office relating to the arrest, detention, and prosecution of municipal code violations and traffic offenses. The objectives of this evaluation were to determine costs incurred by the City as a result of these practices and to assess the impact of policies adopted by the City, including an ordinance enacted in 2008 to reduce the number of arrests.