Ontario Hydro v Ontario (Labour Relations Board)
327 is a leading constitutional decision of the Supreme Court of Canada on the federal declaratory power and the peace , order and good government power under the "Constitution Act , 1867" . 
<triplet> federal declaratory power <subj> Constitution Act, 1867 <obj> part of <triplet> Constitution Act, 1867 <subj> 1867 <obj> point in time