Well, they're issues associated with monitoring the data. Someone has to monitor the data so that the GPS receiver, if you want to call it that, transmits the data back to some sort of monitoring site. But what do you do with it? Someone has to sit there and analyze it and make a decision as to what to do. There has to be a follow-up process of some sort. If you believe someone has transgressed, you have to presumably do something about it.
Those are issues more for the Public Safety and Corrections guys to deal with. From a technical perspective, there are obviously technical things that need to be solved as you go through that operational requirement.