Local law enforcement in Minnesota can’t legally hold people in jail for the sole purpose of turning them over to federal immigration authorities, according to an opinion released by Attorney General Keith Ellison this week.

After an inmate has already served their sentence in jail, how long can a county sheriff continue to hold them behind bars until federal immigration authorities swing by to determine if they are, indeed,

Ellison’s opinion finds that “Minnesota law does not authorize state and local officials to hold or arrest someone based on an immigration detainer”