Not sure about this company, but with Nextel phones offering the walkie talkie system I feel that of these types of companies are going that route. Secure and unscanable, no wait or fees for FCC license.
I tracked them down on one of the commercial trunked systems. They handle security in my office building. They do seem to be an interesting outfit. One day you'll have the KPD officer decked out in the full BDU's wearing an entire police supply catalog on his belt. The next day an 75 year old grandmother will hobble in to do the same job. I know that luck favors the prepared, but ... seriously.