(a) Members of the board, advisory committee members, the executive director, members of board staff, independent contractors and consultants retained by the board shall not disclose any confidential information which comes to their attention, except as may be required by law.(b) Regardless of whether the board takes disciplinary action or not, all complaint investigations, including investigation files, investigation reports, and other investigative information in the possession of, received or gathered by the board is confidential, prior to public hearing or board action, and any employee, agent, or member of the board may not disclose the information contained in these files except to another governmental, regulatory or law enforcement agency engaged in an enforcement action and as provided for in §901.160 of the Act (relating to Availability and Confidentiality of Certain Board Files) or upon receiving written authorization from the license applicant or current or former license holder who is the subject of the investigation.