Requires certain law enforcement entities and courts to cooperate with federal immigration authorities.

New Jersey's S 4085 requires state law enforcement agencies, courts, and correctional facilities to notify federal immigration authorities within 24 hours when arresting or convicting non-citizens unlawfully present in the U.S. for specific crimes - including first-through-fourth-degree offenses, drug-related crimes (like possession or distribution), theft, or robbery. The bill mandates that sentencing courts and parole/probation officers also immediately contact federal immigration authorities to initiate deportation proceedings for these individuals. It defines "federal immigration authority" broadly to include ICE, CBP, and DHS personnel. The law applies to all New Jersey law enforcement entities and takes effect immediately.