Without in any way prejudicing, limiting, or derogating from the power of the Sovereign, or of the Governor - General, to make or authorise any inquiry, or to issue any commission to make any inquiry, it is hereby enacted and declared that the Governor - General may, by Letters Patent in the name of the Sovereign, issue such commissions, directed to such person or persons, as he or she thinks fit, requiring or authorising him or her or them or any of them to make inquiry into and report upon any matter specified in the Letters Patent, and which relates to or is connected with the peace, order, and good government of the Commonwealth, or any public purpose or any power of the Commonwealth.