Automated Background Check via Voice Pattern Matching

Embodiments use electronic speech samples of detainees and automatically scan electronic speech sample databases to detect when a detainee has a criminal record and to alert controlled-environment facility personnel to that record. An electronic speech sample of the detainee is captured during booking or at another time. The electronic speech sample is compared to a database of electronic speech samples of individuals with criminal records. If the electronic speech sample matches an existing electronic speech sample in the database, then information associated with the matching electronic speech sample is provided to the controlled-environment facility personnel. The information is analyzed to identify key issues, such as active warrants. The controlled-environment facility personnel are alerted to any such key information.