With respect to seasoned drinkers who aren't detectable on the roads, stopping cars at random isn't going to assist in detecting them. Reversing the onus and creating this new impaired after driving provision isn't going to detect those individuals. Removing the three-hour time limit and having an automatic read-up of impaired rates by math isn't going to help detect or catch or prosecute those individuals. What those things certainly will do, however, is attract charter challenges and bog down the courts, and ultimately, there's a good chance especially when we're looking at convicting people who may not have had any alcohol in their system while they were driving it will result in wrongful convictions and charter litigation. That's what it will do.
On September 20th, 2017. See this statement in context.