Because policing is a provincial and territorial responsibility, there is actually a patchwork of different pieces of legislation that is relevant. That's part of an overarching problem in assuring that all police forces across the country adhere to golden, best standards when it comes to uses of surveillance technologies.
This is why, rather than doing a patchwork approach of encouraging provinces to amend a series of pieces of legislation in each of their jurisdictions, I recommend that there should be a federal advisory body to produce advisory bulletins, which those provinces can then take forward and attempt to implement within their own jurisdictions to achieve consistency and best practices across the country.