The American Civil Liberties Union is suing five Wisconsin sheriffs over their practice of holding people in jail at the request of Immigration and Customs Enforcement. That’s because Wisconsinites need statewide clarity on the issue, said Hannah Schwarz, an attorney with the ACLU of Wisconsin. Most, but not all, Wisconsin sheriffs are choosing to comply with those requests, which are known as detainers. That is not happening here.”ALSO READThe ACLU argues that under Wisconsin law, jailing someone for extra time because of a detainer amounts to a new arrest. Earlier this year, Wisconsin’s GOP-controlled Assembly passed a bill that would withhold money from counties that don’t comply with immigration detainers.