Audio expert witnesses may consult on audio forensics, voice recognition, audio tape verification, recorded evidence, and acoustic engineering. Last week Judge Debra Nelson ruled on voice recognition evidence in the George Zimmermantrial. Judge Nelson found that the expert testimony regarding a 911 call did not meet scientific evidence standards.
Testimony has now reached the fourth day in the murder trial of Zimmerman who is accused of killing Trayvon Martin in 2012. Zimmerman maintains that he acted in self defense.