Check out the post in the post by Thunderbolt in the RR Announcement and News ref:Homeland Security Details... . It references the WV IRP. I don't know if it is old news or not however appears to be new to me.
It sounds like something that Raleigh County was trying to do a few years ago. They nearly scrap the system till the new sheriff took over and was proceeding a lawsuit to the company in Louisiana. I can't remeber the software that was used. The problem was the signal (wifi) would not pickup most of the time. Later I heard that were switching to verison, it would let the shift leader to sit infront of his computer and watch by gps every officer and all data traffic that is sent to each other and to 911 center. Far as the radio working as interop. I heard nothing ever mention with them.