The Federal Bureau of Investigation has received DNA evidence recovered from the Tucson, Arizona, home of Nancy Guthrie, ...

For 32 years, Tanya Frazier's suspected killer went unidentified — even as his DNA sat in the system designed to catch him.

SCOTTSDALE, Ariz. - A judge in Maricopa County has thrown out the DNA sample that led to the arrest of a man accused of killing a Scottsdale woman in 2015. The murder of Allison Feldman confounded ...

On April 16, ABC News reported that FBI received DNA evidence in the form a hair sample from the 84-year-old’s home. The Pima ...

SCOTTSDALE, Ariz. - The state of Arizona is appealing a ruling regarding the use of a suspect's DNA in connection to the murder of Allison Feldman, a Scottsdale woman who was killed in 2015. It took ...

The FBI is now utilizing new technology to conduct advanced analysis on the DNA sample.

Contamination and other errors in DNA analysis have occurred at the Washington State Patrol crime labs, most of it the result of sloppy work. The most common problems are cross-contamination by ...