Police are suppose to follow that law... and that’s almost always a good thing. This is close, but it doesn’t come up to the Nuremberg standard...
If cops had been told to shoot and kill unarmed truck drivers 99% of them would have said, “No, not gonna do that” - and accepted the consequences...
The law that needs to be changed is the one dealing with the Emergencies Act of Canada:
“R.S.C., 1985, c. 22 (4th Supp.)- An Act to authorize the taking of special temporary measures to ensure safety...”
(https://laws-lois.justice.gc.ca/eng/acts/e-4.5/page-1.html)
Trudeau overstepped his authority because he’s an idiot who got into office by choosing the right father to be born to (born on third thinks he hit a triple)... So the Canadian Parliament needs to put restrictions on the law so some future fool can’t use it to punish citizens he hates... like working class citizens - or reward groups he likes like violent BLM and Antifa.
You live in dream world.
The contents of the law make no matter to those in power. All they have to do is overstep legal authority and see what happens - no consequence after the fact, worst that happens to Pierre is he's booted out of office.