In this Division:
"authorised person" , for the Commonwealth, means an officer, employee or agent of the Commonwealth acting within the officer's, employee's or agent's actual or apparent authority.
"executive" , of an agency of the Commonwealth, means the person or body, whatever the person or body is called, exercising the executive authority of the agency.
"officer" , of an agency of the Commonwealth, means a person who makes, or participates in making, decisions that affect the whole, or a substantial part, of the business or undertaking of the agency.