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Revolutionary forensic tech gets gunshot residue to glow green | The technology could allow police officers to detect gunshot residue on suspects right at crime scenes, instead of via lab-based tests days later
If you've watched even a single episode of CSI, you'll know how important it is to check suspects and crime scenes for gunshot residue (GSR). A new technique could make that task faster and easier than ever before, by quickly causing the residue to glow green.
Developed by Wim Noorduin, Arian van Asten and colleagues at the University of Amsterdam, it utilizes an isopropyl-alcohol-based liquid which is sprayed onto surfaces at crime scenes. In shooting range tests, the technology successfully detected GSR on cotton cloth targets that volunteers fired upon using two 9-mm handguns (a Glock 19 Gen5 and a Walther P99Q NL) from distances of up to 2 meters (6.6 ft). An experienced freelance writer, he previously obtained an English BA from the University of Saskatchewan, then spent over 20 years working in various markets as a television reporter, producer and news videographer.
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