Without prejudice to any other matter that the CBB may consider relevant, the CBB may in determining whether an approved person has failed to discharge the duties or functions of his office or employment for the purposes of Subparagraph CSD-5.3.23 (c), have regard to such criteria as the CBB may prescribe or specify in directions issued by notice in writing, after consultation with the licensed clearing house or or licensed central depository, as the case may be.