Royal instructions[1] are formal instructions issued to Governors of the United Kingdom's colonial dependencies. They have also been issued to the Governor General of certain Commonwealth realms.
Traditionally the royal instructions were issued to a Governor to:
Initially the form of royal instructions remained essentially unchanged after the development of responsible government. Detailed criticism in 1876 by Edward Blake (Canada's federal Minister of Justice) of the wording of both the letters patent appointing the Governor General of Canada and the royal instructions issued to him led to changes to both sets of instruments for each of the dominions, to better reflect how they were actually governed.