Anecdotally from listening to police scanners, whenever there's an areawide BOLO notice or anything exciting involving a known party, they always say where the

Anecdotally from listening to police scanners, whenever there's an areawide BOLO notice or anything exciting involving a known party, they always say where the last "cellphone ping" was. E.g. "Look out for a Black male driving a white Nissan, last cell ping was on the north side of Lowell 15 minutes ago." Not sure if a warrant is required, but it happens pretty quickly