Mr. Speaker, to the best of my knowledge, it is being used in the United States, specifically California. I believe similar devices are being used in Australia.
I do not know of any charter challenges that may have occurred in those jurisdictions, but I believe this passive alcohol sensor would survive a charter challenge, as I stated in my speech, due to Dedman v. The Queen. It pretty much states that it is a reasonable limit to regulate, because when one has a driver's licence, it is pretty much a privilege, and in order to keep others safe, that is a reasonable grounds to interfere on someone's rights of driving.