I certainly don't feel the need to defend anything I would say in the context of what the B.C. Civil Liberties Association might say. I think one judges an argument on its own strengths.
The case we're hearing, as I think Mr. Noreau said, is that something like a 30% response rate would not be enough. There are quite a number of studies—I have a couple in front me—that indicate that response rates in the 20% range are perfectly adequate. The issue here is not the size of the survey, it is the way in which it is carried out.
You made a point that I think is accurate, that one has to be careful in ascertaining that certain minority groups have responded. In other words, one of the difficulties with shrinking down the response level is if you see a particular drop-off in certain groups that have a history of not responding to the same level—the poor, certain ethnic groups, aboriginal groups for sure, and one could go on.
The need, therefore, is to come up with a survey instrument that is particularly responsive to those minority groups. I don't know any research that shows that the best way to get to minorities is to threaten them.