Except as otherwise provided, no Wisconsin employer may:

1. Directly or indirectly require, request, suggest or cause an employee or prospective employee to take or submit to a lie detector test.
2. Use, accept, refer to or inquire about the results of a lie detector test of an employee or prospective employee.
3. Discharge, discipline, discriminate against or deny employment or promotion to, or threaten to take any such action against, any of the following:
   • an employee or prospective employee who refuses, declines or fails to take or submit to a lie detector test; or
   • an employee or prospective employee on the basis of the results of a lie detector test.
4. Discharge, discipline, discriminate against or deny employment or promotion to, or threaten to take any such action against an employee or prospective employee for any of the following reasons:
   • the employee or prospective employee has filed a complaint or instituted or caused to be instituted a proceeding under this law;
   • the employee or prospective employee has testified or is about to testify in a proceeding under this law; or
   • the employee or prospective employee has exercised any right under this law.

For purposes of this law, employer means any person acting directly or indirectly in the interest of an employer in relation to an employee or prospective employee. Employer does not include the federal government.