When you consider all this happened because of the PA-32 crash at Hamilton Island where the pilot was found to have a non therapeutic amount of cannabis in his system. Indeed, it was said, from memory, he smoked a joint some weeks earlier. As such it is relevant to ask, of all the positives, how many contained a therapeutic dose and were a safety concern.
I consider the claimed results lack credibility and are a waste of time and money.
Safety is a much abused word in Australia.