Wisconsin Statutes State Employment Relations (Ch. 230) § 230.86. Discipline based on surveillance

(1) No appointing authority may take any disciplinary action based in whole or in part on wiretapping, electronic surveillance or one-way mirrors unless that surveillance produces evidence that the employee against whom disciplinary action is taken has committed a crime or unless that surveillance is authorized by the appointing authority and is conducted in accordance with the rules promulgated under s. 16.004(12).

(2) Subsection (1) does not apply to wiretapping, electronic surveillance or one-way mirrors used to monitor security or used for public safety purposes at a state institution.