Now, when you heard "switch to North" did a police officer say that or the dispatcher? If it was an officer then perhaps bellmawr has their own frequency that is not monitored by county. If not then its probably something we dont have here on the database. Maybe if you hear that again try doing a frequency search in the 500 Mhz range and see if you come up with anything. I guess its worth a shot. I'd try it here, but I barely get either zone 1 or 5, so I doubt if I'd be able to get their switchover.