I don't speak on behalf of the department, but I can speak a little on this from my own experience, and also because it's a very important tool relating to the fairness of the process.
When I became the chief risk officer, I was aware that occasionally the department was using fairness monitors on certain projects, and I liked the idea. I thought it was an excellent idea: we could get somebody from the outside, a Good Housekeeping seal of approval on the stuff, and it works.
We looked around and found out that it was being done on an ad hoc basis. There was no policy at that time, so the first thing we developed was a standards criteria policy. I come from a background in the Auditor General's office where everything has to be done to standards and with rigour. So the first thing we did was develop a policy. We developed standards, and in those we developed some thresholds. There were some thresholds over which (a) you had to justify not having one, and (b) there was another one over which you had to have one.