Believe me, I'm very sympathetic to getting drunk drivers off the road, and for being much stricter around drunk driving. But I was just going to say the burden of proof falling on the accused could, as the Canadian Civil Liberties Association pointed out, affect people who are in marginalized segments of our society. Having to obtain their own toxicologist report to be able to respond adequately with a reverse onus of proof may leave them unable to provide a defence.
On October 4th, 2017. See this statement in context.