MPD launches new tool to crackdown on gun violence New technology alerts police to gunfire By Janice Broach | April 1, 2021 at 6:30 PM CDT - Updated April 1 at 10:20 PM MEMPHIS, Tenn. (WMC) - The Memphis Police Department has launched a new tool to fight crime. Itâs called Shot Spotter, a device that does just that, spot and locate gunshots. It is new crime-fighting technology that was just installed in Orange Mound. MPD launches new tool to crackdown on gun violence âWithin an hour of implementation, we received our first notification of shots being fired near Hamilton and Barron,â said Rallings. âOfficers made the scene and no victims were located however ballistics evidence was recovered.â