Wis. Stat. § 102.123
If an employee provides to the employer or the employer's insurer a signed statement relating to a claim for compensation by the employee, the employer or insurer shall provide a copy of the statement to the employee within a reasonable time after the statement is made. If an employer or insurer uses a recording device to take a statement from an employee relating to a claim for compensation by the employee, the employer or insurer, on the request of the employee or the employee's attorney or other authorized agent, shall reduce the statement to writing and provide a written copy of the entire statement to the employee, attorney, or agent within a reasonable time after the statement is taken. The employer or insurer shall also make the actual recording of the statement available as an exhibit if a hearing on the claim is held. An employer or insurer that fails to provide an employee with a copy of the employee's statement as required by this section or that fails to make available as an exhibit the actual recording of a statement recorded by a recording device as required by this section may not use that statement in any manner in connection with the employee's claim for compensation.
Wis. Stat. § 102.123