(1) Interagency access to CBI documents, shall be requested in writing and shall state the specific purpose for such access. The department recognizes that disclosure of specific CBI may be necessary for an agency to carry out a directive on behalf of the department, to fulfill said agency's own statutory obligations, or to complete an inquiry initiated by the department. Written requests for access to CBI by agencies outside the department shall be signed by a designated person from the agency authorized by the department to receive and review CBI. All such requests shall be entered as a permanent part of the document tracking system. The department reserves the right to deny CBI access to persons or agencies not providing adequate document security.