It's my understanding that most of the bigger ISPs generally cooperate with law enforcement. According to the Privacy Commissioner, in a letter we received from her, ISPs look at it on a case-by-case basis, so I guess it depends on the circumstances and what the issues are.
I'll refer to the Edmonton Journal of February 8. The head of the RCMP's coordination centre referred to some smaller Internet service providers that exist solely to trade in child sexual abuse, and the challenges in getting smaller companies to cooperate. Our concern is that if we leave it voluntary, the bigger companies will cooperate, but the people who are trading this stuff know what's going on and they'll tend to go to the smaller companies that are not cooperating.
I will refer very briefly to legislation that the former government introduced, Bill C-74, prior to the last election. It would have spoken to the issue of requiring ISPs to cooperate with law enforcement.