Pima County Sheriff Chris Nanos revealed that there are problems with the DNA evidence collected from Nancy Guthrie’s house that could take up to a year for the private Florida lab he’s using to resolve.

Local cops recovered DNA from the missing 84-year-old grandmother’s home that does not match her, family members, or people who worked in the home — but it is mixed with Guthrie’s DNA and the samples are not complete, he revealed to NBC News last week.

“Our lab tells us that there’s challenges with it, and we understand those challenges,” he said.

“But our lab also knows that the technology is moving so fast and in such a frenzy that they think some of this stuff will resolve itself just in a matter of weeks, months or maybe a year, to allow them to do better with, say, a mixture of that kind of thing.”

Nanos said the DNA could be from the man who abducted “Today” show host Savannah Guthrie’s mom — but so far the lab has been unable to match the sample to any of the convicted criminals or suspects in the FBI’s CODIS database.

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Nancy Guthrie may have been abducted by drug cartel — but may still be in Arizona, one private investigator believes.

Bill Garcia, a California-based PI with more than 35 years of experience, told Border Report he thinks the 84-year-old was abducted in a “money-making venture by people involved with a cartel” — but not taken into Mexico.

“That particular area of Arizona is a high drug and money transporting area,” Garcia said.

“It has deepened my believe that this is in some way related to a money-making venture by people involved with a cartel.”

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Mexican activist organization Madres Buscadoras de Sonora claimed that they were not allowed to help in the search for Nancy Guthrie without getting proper permits first.

According to TMZ, two members of the group — seen wearing T-shirts and holding signs with Nancy's face on them — reportedly traveled from Mexico to aid in the search near Guthrie's Tucson home, where the 84-year-old was last seen three weeks ago.

Ceci Flores Armenta — founder of Madres Buscadoras de Sonora — told TMZ that Pima County turned them away because they did not register for permits to join the search.

Now, Armenta is hoping to get in contact with the Guthrie family.

As of 2024, CNN reported that the group had discovered more than 2,700 bodies in clandestine graves and reunited around 2,400 people with their families in different parts of the countries.

After nearly three weeks without a breakthrough, investigators could soon scale back the search for Savannah Guthrie’s missing mom, according to a report.

The that the case may shift to a smaller long-term task force model as key leads have come up empty, ABC News reported Friday, citing “sources with knowledge of the case.”

Partial DNA recovered inside 84-year-old Nancy Guthrie’s Tucson home remains unidentified. Authorities have not linked a vehicle to the abduction, and no additional footage has been recovered from her home security system.

But the Pima County Sheriff’s Department told The Post that between 300 and 400 personnel remain assigned to the case and that staffing levels are the same as when the investigation began.

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Police ask media to clear out 'ASAP' as authorities tighten access to Nancy Guthrie's home

Journalists covering Nancy Guthrie's disappearance were told Saturday morning to move their cars from the area as police access tightened near the missing 84-year-old's Tucson residence.

In a note sent to “media partners,” officials said any unattended news vehicles left near the home needed to be moved “ASAP” because the roadway was turning into a one-way street to accommodate residents and public service vehicles.

“This morning, we need space to get the trucks in & barricades in,” the message read.

Crews were told they could return within the next hour or so to set up, but must remain on the northwest side of the barricades, across from the house.

Officials added that recording of barricades coming in was permitted, but only as pedestrian traffic, with “no vehicles for at least the next hour or so while barricades are set up.”

Pima County investigators are vowing they'll recover Nancy Guthrie, nearly three weeks after she disappeared and was possibly abducted from her Tucson home in the middle of the night.

"We're not quitting. We'll find her," Sheriff Chris Nanos told NBC News.

Local and federal investigators have yet to name a suspect in the presumed abduction and are still attempting to identify the masked individual who was seen on Guthrie's front door Nest camera in the dark of night.

Investigators are getting closer to identifying the masked man based on his articles of clothing, Nanos said Friday.

The unknown individual's backpack was identified as a 25-liter Ozark Trail Hiker Pack which is sold exclusively at Walmart, NBC reported, citing investigators.

That person's pants, shoes, and jacket are also being considered vectors for identification.

Investigators are also visiting gun stores in the region and asking whether anyone can recognize the distinctive holster used by the 84-year-old's presumed captor.

Earlier this week, a DNA sample from a glove found near Guthrie's home, and similar to the one wore by the masked man, turned up no matches in the FBI's CODIS database.

Guthrie hasn't been seen since Jan. 31.