Pima County Sheriff Chris Nanos said the results that investigators have received from DNA testing in the Nancy Guthrie case so far haven't led to a suspect.

ST. PAUL — The Hennepin County Sheriff’s Office has put DNA testing at its crime lab on hold as it works to determine the source of “sporadic DNA contamination.” The sheriff’s office said it appears the contamination may be linked to “an ...

DENVER, March 8 (Reuters) - A retired DNA scientist for Colorado's state crime laboratory is under investigation over suspicion she manipulated genetic test results in several hundred cases dating back at least 15 years, state officials said on Friday.

A lab that handles tens of thousands of dollars worth of DNA testing in police investigations plans to soon stop accepting out-of-state samples, a move that officials say poses a problem for Arkansas and could add hefty new fees for local law enforcement ...

Pima County Sheriff Chris Nanos said the Guthrie family, including spouses and siblings, have all been ruled out as suspects in the disappearance of Nancy Guthrie. Nanos hit back at criticism of his handling of the search for Nancy Guthrie,

Retired FBI agent reveals three possible outcomes as Nancy Guthrie investigators await crucial DNA results from glove found near scene in ongoing case.