Story perspectives

Leonardo’s SignalTrace Links Plates, Bluetooth, Wi-Fi for Police

6/18/2026

Summary

Story summary

Leonardo unveiled SignalTrace, linking license-plate images with Bluetooth and Wi-Fi signals to identify occupants.
U.S. law-enforcement agencies deployed SignalTrace and Flock readers, which helped locate a suspect’s vehicle in Roanoke.
The Crow Wing County Sheriff’s Office installed Flock units that scan plates against a Minnesota hot list, retain images 30 days, cost about $3,000 per unit annually, and aided investigations of an April 28 shooting and a May fire.

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Story summary

Leonardo unveiled SignalTrace, linking license-plate images with Bluetooth and Wi-Fi signals to identify occupants.
U.S. law-enforcement agencies deployed SignalTrace and Flock readers, which helped locate a suspect’s vehicle in Roanoke.
The Crow Wing County Sheriff’s Office installed Flock units that scan plates against a Minnesota hot list, retain images 30 days, cost about $3,000 per unit annually, and aided investigations of an April 28 shooting and a May fire.