Prohibit agreements by state agencies relating to immigration enforcement without legislative approval and change provisions relating to the use of state prisons

LB 963 prohibits Nebraska state agencies from entering into any agreements related to immigration enforcement - such as detaining or arresting individuals for immigration purposes - without prior approval from the Nebraska Legislature. This applies to all state agencies and officials, making unapproved agreements void and unenforceable, with a specific exception for agreements related to human trafficking enforcement. The bill also defines "immigration enforcement agreement" broadly to include contracts, memorandums, or leases with public entities, while excluding human trafficking-related cooperation. It does not change current prison detention policies but modifies definitions in the Nebraska Treatment and Corrections Act to align with these new requirements.