With respect to the roadblocks and so on, they are very effective. The random breath testing serves two purposes. One is that these roadblocks--setting them up and all of that sort of thing--are very police-resources intensive. When you do set them up, they're more effective when you have the random testing because you don't have to interview people and try to decide whether you smell alcohol. You just present the thing and they blow in it. That's how they do it in Europe. That's how they do it in Australia. Wave them in and they blow. If they blow under 50 in Australia, they send them out. Presumably in Canada, if they get the warning, they get the provincial...so that does that.
The other thing it does is this. Canada is a rather large country. In rural areas, etc., and on roads that are not heavily travelled, you're not going to be able to set up these roadblocks and have them there so that you can stop 10 cars in three hours or something, but if you do see somebody doing something and you have that in your car, you can immediately demand that they provide a breath sample, and you can either clear the person right away--if it isn't alcohol, that's their problem--or perhaps you have them now and you can continue on with the approved instrument test.
We are not advocates here. I'd love to be one, but Winnipeg South didn't elect me, so that's the way it goes.
The 0.05 and RBT are not mutually exclusive or anything. We could do them both if you want us to. We'll find a way to do it.