: They can pinpoint a device to a specific room, capture unique identifiers like IMSI or IMEI numbers, and sometimes intercept metadata like call logs.
: This software can track a device's movement over months to reveal where a user lives and works.
Before the smartphone era, police relied on physical surveillance—tail cars, stakeouts, and eyewitness testimony. These methods were dangerous, labor-intensive, and often unsuccessful. Today, a warrant served to a mobile carrier can produce a map of a suspect’s movements accurate to within three meters.