In this Division interested person means (a) the Chief Psychiatrist; and(b) the controlling authority of the SMHU; and(c) the person who applied for the leave (if not the patient); and(d) if applicable, the patient's intended escort; and(e) the Director (Corrective Services); and(f) the Commissioner of Police; and(g) the Secretary (Corrections);responsible authority means (a) the Tribunal; or(b) the Chief Psychiatrist; or(c) the controlling authority of the SMHU; or(d) the Secretary; or(e) the treating medical practitioner; or(f) an approved medical practitioner.