Pearl Options for Police, Fire and EMS Scanners.
The Mississippi Department of Public Safety and Highway Patrol operates primarily a VHF low and high-band conventional radio system which can be monitored on any scanner including basic low-end models. Other state agencies also operate conventional radio systems. However, in selected metro areas, some of which operate digital and/or trunking radio systems, state agencies may partially operate on these regional networks. For more information see:
Mississippi Highway Patrol on RadioReference.com