BOISE, Idaho -

The state of Idaho says its sovereign immunity against lawsuits from citizens of other states should protect the Idaho State Police from being sued in a license-plate profiling case.

The Spokesman-Review reports the state made the argument in its response to a lawsuit filed by 69-year-old Darien Roseen of Colorado. Roseen alleges ISP Trooper Justin Klitch pulled him over at a rest stop as he crossed into Idaho from Washington state in January 2013. Roseen said he was detained for hours and officers searched his vehicle for marijuana for no other reason than because he had a Colorado license plate and a Washington state driver's license. Both states have legalized marijuana.
Mark Coonts, an attorney for Roseen, had no comment on the state's filing.