surveillance frequencies

Any one know the surveillance frequencies used by AZ State, PHX PD and Maricopa County? I am sure they run encryption on the RWC or other local trunking systems but they probably have a few simplex channels that they operate on when conducting business away from RWC coverage. Have noticed that AZ state have statewide authorization on the repeater inputs and outputs. Based on that they could conduct surveillances on repeater input channels that are not paired with a local repeater. Could be way off on this.



I have heard PDs conduct surveillances on city wide paging systems. No one would listen to that racket all day, a perfect place to hide. Radios used by the officers had PL on the receive side to minimize receiving pager traffic.



Actually know a PD that uses a commercial trunking system and another one whose narcotic officers use a pig farm channel for surveillance, not kidding.



Some PDs have blown the dust off their old low band radios and actually conduct surveillances on old 30 to 50 MHz radios which they still have licenses for.



Others operate on school bus frequencies, DPW and local maintenance channels at night so locating the channels the PDs use for surveillance can be challenging.



If anyone is aware of frequencies used by PHX PD, Maricopa County or AZ State could you share them with me?