Statutory authority in BC for the appointment of cabinet and establishment of government ministries is provided by the Constitution Act, R.S.B.C. 1996, c.66, s.9.
Appointment of ministers and establishment of ministry duties and functions are made by order in council. These orders in council are published in the BC Gazette, Part I (index heading: "Ministry of Attorney General. Orders in Council").
Orders in council outlining recent government re-organizations are available in full text on the BC Laws website.
References
- Constitution Act, R.S.B.C. 1996, c.66, s.9 – BC Laws
- BC Gazette, Part I – onsite at Vancouver Courthouse Library
- Orders In Council – BC Laws