The judge in Richard Slade has interpreted old common law authority on those concepts arguably without recognising its flexibility to reflect the modern practice of interim bills which parties often for good reason treat as being final. (signaturelitigation.com)
19 In Saskatchewan where no provincial legislation existed, the Court of Appeal in R. v. Burke11 concluded that there was a common law authority for police to stop motorists at a roadblock to check sobriety. (bestimpaireddefence.ca)
That's the judgment, which is the «source» of the common law authority. (slaw.ca)