Neb. Rev. Stat. § 83-356: Mentally ill persons; mistreatment; liability; penalty.

Any person taking care of a mentally ill person, and restraining such a person, either with or without authority, who shall treat such person with wanton severity, harshness or cruelty, or shall in any way abuse such a person, shall be guilty of a Class V misdemeanor and shall also be liable in an action for all damages sustained by such mentally ill person.