I'll answer that question, but I have just a quick point of clarification.
For the roughly four out of five offenders who have substance abuse problems, it's as general as that; it doesn't mean that they all have serious substance abuse problems. That phrase has been used several times in different fora, and it's not the statistics that we produce. Eighty per cent have a substance abuse problem. About 50% had that substance abuse problem played out at the time that they committed their offence. Having said that--