Here are a few links to help you out with your APA citations.
Crime Solutions--a government run website about the utility and success of certain CJ programs that have been instituted around the country
National Institute of Justice--a government website under the Office of Justice Programs that addresses many current topics in the CJ world
National Criminal Justice Reference Service--The National Criminal Justice Reference Service is a federally funded resource offering justice and drug-related information to support research, policy, and program development worldwide.
Department of Justice--The central home for all DOJ projects.
Iowa.gov--Iowa's official government site