Under existing law, a law enforcement official has limited discretion to cooperate with immigration authorities, and may only provide information regarding a person's release date or transfer an individual to immigration authorities without a judicial warrant or probable cause determination if the individual has been convicted of specified crimes, including, but not limited to, serious and violent felonies, as specified, and only if doing so would not violate any federal, state, or local law, or local policy. Notwithstanding those provisions, this bill would instead require law enforcement officials to cooperate with immigration authorities by detaining and transferring an individual and providing release information if a person has been convicted of a felony. By requiring local law enforcement to comply with requests from immigration authorities, this bill would impose a state-mandated local program. The California Constitution requires the state to reimburse local agencies and school districts for certain costs mandated by the state. Statutory provisions establish procedures for making that reimbursement. This bill would provide that, if the Commission on State Mandates determines that the bill contains costs mandated by the state, reimbursement for those costs shall be made pursuant to the statutory provisions noted above.