See, THAT"S what bullets are for

LOL
The problem is that the first nations and others are a little concerned that a conservative gov't might claim they had bouncy castles at one of their protests.
Well obviosuly but they're pretty sure that conservatives would shoot back if you started to gun them down. And they own a lot more bullets and guns than the Canadian military does right now.
The usual legal remedies should do nicely

But - the police do need crowd control devices for when things are getting a little out of hand.
So trying to 'disarm' the police makes no sense, OTHER than it makes certain protest groups happy.