David L. Moss Criminal Justice Center, a detention facility, is governed by the Tulsa County Sheriffs Office. It maintains a staff of more than 320 employees. The county government provides law enforcement, custodial and court-related services to citizens. It also works with various criminal justice agencies. Tulsa County Sheriffs Office, also known as TCSO, undertakes the responsibilities to oversea critical incidents and disasters. It operates an internal affairs unit that investigates complaints filed against sheriff s office employees. The county government also conducts various conferences and meetings. Tulsa County Sheriffs Office maintains a gun range, patrol services division and training unit. Its records unit is responsible for civilian fingerprinting services.