Section 65C. Meetings of the boards held for the purpose of conducting investigative conferences prior to the issuance of an order to show cause or for purposes of discussing the terms of a negotiated settlement of a complaint against a licensee shall not be considered open meetings within the meaning of section 11A1/2 of chapter 30A, but a licensee shall have access to records of any meetings concerning the licensee as may be necessary for the defense of his license at an adjudicatory proceeding.