DNA testing on a hair sample found in Nancy Guthrie's home returned no profile, but investigators say the sample may still prove valuable as the case continues.

During a court status conference, legal teams clash over the testing of DNA samples taken from fingernail clippings. The ...

Immigration agents have collected hundreds of thousands of DNA samples from detainees, an effort experts say raises the ...

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 ...

New DNA samples will be taken from a man jailed for a double murder, exactly 30 years after a mother and daughter were beaten ...

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 ...