Yes, just to add very quickly to that, we too rely on the DDC, but have also undertaken our own research, which shows the exact same thing about saliva. While it's very useful for law enforcement to have the oral fluid screening device for detection, and it helps them to build reasonable grounds to believe an offence is being committed, it's not sufficient yet for an actual per se limit. We're in contact with manufacturers, we see great progress, and we're convinced that the technology will continue to improve, but it's not there yet.
The other thing I might add is that there's not as much research as there is on the alcohol side. Of course, alcohol has been legal for so many years, and cannabis has been an illicit substance. There isn't as much research, but we are investing heavily in it. We're planning to do some research with Dr. Bruna Brands from the CIHR with respect to impairment and different use, whether it's smoking or eating brownies.
Other countries are doing the same thing. The U.S., for example, has a green lab. We're monitoring all of that very closely.