obile ata erminal. The capabilities of MDTs in use around upstate New York vary. The simplest systems receive messages and dispatch information and can be used to send status reports and other information back to the dispatcher. More sophisticated networks allow police officers to file reports from their cars and provide two-way graphical communications for such purposes as checking fingerprints, broadcasting photos of missing or wanted persons, and sending maps of particular locations. MDT radio systems can be as simple as a single frequency or as complex as a multi-channel trunked network.