On or after filing, a claimant may serve on any other party a request to be permitted to enter upon a designated area of the employer's premises for the purpose of measuring, surveying, photographing, testing, sampling, or inspecting any designated object, record, or substance thereon. The claimant, or complainant, may request the production of the employee's medical records and record of wages earned since the alleged injury. These discovery requests must describe each item or category sought with reasonable particularity, and be accompanied by a statement providing the relevance of the requested information. The party on whom the request is served must respond in writing within five calendar days after service of the request.