My guess is that if they believe the suspect to be law enforcement, that the belt is standard uniform issue, which is why they're not giving additional details. Would also make some sense of the initials being on it; make sure if it gets mixed up in a locker room or something they can identify...
I just found this page recently, too, and it's wonderful seeing people so interested in this. Hugs to you and your family. I'm from her and Phil's other family - the Stanners (high school).