In terms of how the assessments are used, as I mentioned, the psychopathy checklist is one of the central instruments, and this book is available at Chapters. I know they have at least one copy a couple of blocks from here, because I tried to pick it up the other day and I didn't get around to it.
The other ones have different acronyms: SORAG, VRAG, STATIC-99. There is a number of different risk assessment instruments that psychiatrists and psychologists use to predict risk, and they are designed for a specific situation. Some deal with sex offenders, some deal with domestic assault situations, and some, such as the PCL-R, just deal with psychopathy generally. This information is considered by experts.
Another point I wanted to bring up is that there is a slight change in the wording of the psychiatric assessment in the new bill that indicates the court would designate the individual. With the current wording, what we do in Ontario is the crown retains one expert and the defence, virtually invariably, retains another expert. It's been incredibly useful for the courts to have two perspectives brought forward. The only time we don't see a defence expert is if the report comes back and it's not favourable and then it never sees the light of day. Those are the rules, and that's fair.