Tracking Bullets
The Fingerprint of a Firearm: Connecting Crimes Through Bullets
How guns are tracked in the United States
First Person: How to Trace a Gun
How do police crack cases without a weapon?
NBC2 Investigates: ‘Ghost guns’ and how a firearm is traced
Tracking shooters throught bullet DNA
Portland police to scan every bullet casing
How To Trace "Untraceable" Ghost Guns - Need2Know
See how local law enforcement uses technology to track guns used in crime
Firearm tracing, how guns make it into the wrong hands
Tracking the path of a stolen gun
The science behind a shell casing: How the fingerprint of a gun can solve crimes
Illinois to consider serial numbers on bullets
Ballistic Identification Technology
Setting up For Bullet Trace
How shell casings are being analyzed to help prevent shootings in Detroit
Police Can Now Track Bullet Casings Like Fingerprints (HBO)
Forensics Expert Explains How to Determine Bullet Trajectory | WIRED
Ghost Guns: Tracing the Untraceable