Which body ruled in 1896 that the "Peace, Order, and Good Government" clause could not be used by Ottawa to override the enumerated powers of the provinces?

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The Judicial Committee of the Privy Council, which was the highest court of appeal for Canada at the time, ruled in 1896 that the "Peace, Order, and Good Government" clause could not be used by Ottawa to override the enumerated powers of the provinces.

Which Body Ruled in 1896 That the "Peace, Order, and Good