(1) How many staff members in his department are facing disciplinary hearings arising from investigations by the Special Investigating Unit into departmental activities; (2) what (a) are the relevant details of the job responsibilities of such (i) employees and (ii) former employees and (b) role did they play in the activities under investigation; (3) have any of these disciplinary hearings been completed; if so, (a) how many and (b) what was the outcome of these hearings?