| George Zimmerman poses for a mug shot in this 2005 |
booking photo in Florida. Voiceprint analysts have
said the voice calling for help on a 9-11 tape is not his.
Orange County Sheriff's Office via Getty Images
THE GIST- Biometric voice analysis is the new fingerprinting.
- Software can compare voices to a high degree of scientific certainty.
- With samples of Trayvon Martin's voice, experts may be able to identify screams on 911 tape.
In classic whodunnit mysteries, detectives and FBI agents dust for fingerprints to solve mysteries and collect court-admissible evidence.
In real life, it's more often the voice that offers the tell-tale evidence, since technology to recognize voices in recordings has become so much more sophisticated.
The Feb. 26 recording of a 911 call by a woman who reported someone crying out for help in her gated community in Sanford, Fla., could be a key piece of evidence in the Trayvon Martin murder case, especially since she called early enough so that screams for help and the gunshot were recorded.
George Zimmerman, a Neighborhood Watch volunteer, shot Martin, an unarmed 17-year-old. Why he did so remains a hotly argued topic, with Zimmerman claiming Martin attacked and beat him.