Aformer FBI agent voices concerns about the Nancy Guthrie investigation, highlighting potential problems with the handling of DNA evidence.

NewsNation senior national correspondent Brian Entin talked to retired FBI Agent Steve Moore about the issues law enforcement is facing with DNA testing.

Over the weekend, Pima County Sheriff Chris Nanos acknowledged challenges with testing the mixed DNA found in Nancy’s home, noting that the process could take weeks, months, or even up to a year.

Nancy Guthrie Case: Ex-FBI Agent Flags Concern Over DNA Lab Decision

The sheriff sent the DNA samples to a private lab in Florida rather than the FBI’s lab in Quantico, Virginia—a decision that Moore thinks is a serious issue.

“Maybe they should have sent it to the FBI lab,” the ex-FBI agent told Entin. “I’m sorry, but when you decide against the apparent FBI disagreement to send this to your lab that you’ve used instead of the world’s foremost crime lab, then you’re responsible if it doesn’t work out.”

Moore continued, “I think that to me it is the most glaring issue right now that I would be concerned about if I were the sheriff. That the FBI knew the pitfalls of sending DNA to a private lab and he did it anyway. And guess what? The things the FBI was afraid of are exactly what happened.”

Moore Shares Worrying Concerns About the Nancy Guthrie Investigation

In the same interview, Entin questions whether the DNA wears down over time, especially after being tested multiple times.

Moore explained that multiple tests can definitely affect the DNA, which could ultimately put the Nancy Guthrie case in jeopardy.

“The DNA is finite. I mean, every time you do a test, you use part of the DNA,” Moore noted.

Moore emphasized that DNA evidence can’t be “shopped around” between labs, as differing results could be challenged in court and potentially weaken the case.

“If you have two different results from the same piece of DNA, you can just throw it out as far as its value in court from a prosecution standpoint,” he added.

Moore also expressed concerns about how the crime scene was handled.

“Releasing the crime scene and then coming back and sealing it up again could be a big complication and will be a big complication during trial,” Moore told Entin. “Because anything found after that first release of the crime scene can be assumed, or the defense attorney will want the jury to assume, that everything is compromised and planted after that. So, it will hurt in the prosecution. It won’t necessarily hurt in the efforts to find Nancy.”