(a) Complaints may be made to the department and where reasonable grounds exist for the department to believe there may be a hazard, there shall be an inspection in response to the complaint.
(b) Names of all complainants and witnesses shall be held in confidence by the department unless prior permission has been given by the complainant or witness to release the complainant's or witness' name or unless it has been determined by the attorney general that disclosure is necessary for enforcement and review of this chapter.