I can speak to the Canada Labour Code and the Canada Industrial Relations Board. I can't speak to the public sector side.
Secret ballot votes are conducted by the board in three different ways. The first way is on site with a ballot booth, if you will, where, just as in a general election, workers go and vote in privacy. The second method that is sometimes used is a mail-in vote. This is used when in the federal jurisdiction you have an employer that is spread across the country and so on site is more difficult. A mail-in vote is used and each member of a bargaining unit receives a ballot and returns it by mail.
The third and more recent method that the board has experimented with is electronic voting, either by telephone or by online voting. That has proved quite successful because, to begin with, it's set up in a way that you can't spoil a ballot accidentally. There's a check in the system. And second, it seems to have a higher participation rate than mail-in ballots. So it's one method that the board has been moving toward in recent years.
I do think the chair of the board will be appearing at your next hearings, and she may be able to give you more details on that.