When the ICE hold has expired 48 hours after the release time from criminal custody, the jail should release the defendant despite the expired hold. If they do not, (1) talk to the most senior Officer in Charge of the Jail and threaten a lawsuit for false arrest if the defendant is not released immediately (and inform the jailer that you will explore a class action for past violations with others); and (2) talk to County Counsel who represents the Sheriff and do the same. Thanks to Michael K. Mehr.