Information obtained during an investigation conducted by the department under this chapter is exempt from section 44-04-18 before the institution of any judicial proceedings or administrative hearing relating to the complaint under this chapter or before the administrative closure of a complaint by the department. The department may disclose to the complainant or the respondent, or a representative of the complainant or the respondent, information obtained during an investigation if deemed necessary by the department for securing an appropriate resolution of a complaint. The department may disclose information obtained during an investigation to a federal agency if necessary for the processing of complaints under an agreement with the agency. Individually identifiable health information obtained during an investigation may not be disclosed by the department except to a federal agency if necessary for the processing of complaints under an agreement with the agency. Statements made or actions taken during conciliation efforts relating to a complaint under this chapter may not be disclosed by the    department, except to a federal agency if necessary for the processing of complaints under an agreement with the agency, and may not be used as evidence in a subsequent proceeding under this chapter without the written consent of the parties to the conciliation. A conciliation agreement is an open record unless the complainant and respondent agree that it is not and the department determines that disclosure is not necessary to further the purposes of this chapter. Investigative working papers are exempt from section 44-04-18.