Public Safety committee  Worldwide, yes; maybe between half a dozen to a dozen. It's a fairly small field.

Public Safety committee  No, you're correct in your perception. There are two-piece GPS systems and one-piece GPS systems. There are the types that are the RF frequency and there are combinations of the two that you can get, but that's about it.

Public Safety committee  Complaints?

Public Safety committee  It wouldn't be appropriate for me to comment on that. I can answer some of the technical questions with Dr. Ashley, but—

Public Safety committee  Things to do with the overall performance of the system, in the way you put it, are outside my purview.

Public Safety committee  Again, that's a question that is better posed to Public Safety Canada, the policy and criminology folks over there.

Public Safety committee  I would hazard to say, from what I have read in some of the literature, that there is a tendency for frequent alarms and a need to respond to alarms that are caused by a multitude of factors. I think that's one of the complaints that you read about. In fact, it's documented in the report that Correctional Services Canada made when they evaluated their pilot study.

Public Safety committee  I can't answer that question either.