An Act empowering law enforcement to cooperate with the United States to transfer custody of convicted criminals

This bill allows Massachusetts law enforcement officers (like police, sheriffs, and state troopers) to temporarily hold non-citizens who meet specific criteria for up to 12 hours to transfer them to U.S. Immigration and Customs Enforcement (ICE). It directly affects individuals convicted of certain serious crimes - such as domestic violence, drug trafficking, gang-related offenses, or violent felonies - as defined in the bill. Key provisions require ICE to provide a written request and warrant, a supervisory officer to verify public safety threats based on listed criteria, and a court to review the detention within 12 hours. The bill explicitly prohibits holding individuals for immigration purposes without these safeguards and ensures court records remain public.