Tax law is interesting in how one is supposed to interpret it. All of this goes back to an old English case called Duke of Westminster, where the House of Lords told us that we could govern our affairs as we saw fit to avoid taxes as long as we complied with the letter of the law. This created a lot of problems in Canadian jurisprudence over the next hundred years. Professor Lareau mentioned that we tried to change things in the late 1980s by introducing a general anti-avoidance rule, a GAAR, that said not just that letter of the law matters, but also the spirit, that you can't abuse the Income Tax Act. So it is tricky, but having said that, within the Income Tax Act there are a host of different penalties for advisors who engage in reckless, negligent, or willfully blind behaviour. As I mentioned at the outset, one way to attack the problem is to pursue those penalties against the advisors.
We've heard that the CPAs are regulated. Of course, lawyers in this crowd would know that we're also a self-regulatory body. I published a book on legal ethics that annotates all the dozens of cases every year where the Law Society of Upper Canada sanctions lawyers. So sanctions are there as well.
However, the more obvious are in the Income Tax Act. As Professor Lareau also mentioned, there are whoppers. You can go after the advisors, like the Department of Justice did with the KPMG tax shelters of a decade ago and fined them $450 million. That was a much larger scale tax shelter called BLIPS—bond linked issue premium structure—and related structures, so it was a very different thing. But we do see that's possible to discourage reckless behaviour.
I'm not, of course, commenting on the KPMG case.