United States Department of Justice, Office of Justice Programs, Bureau of Justice Statistics, Background Checks for Firearm Transfers (2005)
“ Checking agencies often encounter delays when they access incomplete records. The most frequent delays occur when researching the final disposition of a criminal charge in an arrest or indictment record. If the final disposition cannot be found during the time allowed for a background check, the agency must decide, based on Federal or State law, whether the application will be approved, denied, or delayed pending further research. A State's rejection rate may tend to be lower if an approval is mandated and higher if a denial is mandated. ”
