DNA ANALYST SENTENCED TO 10 YEARS — HER DATA MANIPULATION PUT HUNDREDS OF CRIMINAL CASES UNDER SCRUTINY

A former Colorado forensic analyst admitted manipulating DNA records for years — and investigators are now reviewing hundreds of criminal cases that passed through her hands.

For years, Yvonne “Missy” Woods was trusted with one of the most powerful forms of evidence in a criminal investigation: DNA.

Then investigators discovered that the data she handled had been manipulated.

On Tuesday, Sept. 8, Woods, 66, a former forensic analyst with the Colorado Bureau of Investigation, was sentenced to 10 years in state prison after pleading guilty to felony charges stemming from misconduct that authorities say occurred between 2008 and 2023.

The consequences are reaching far beyond Woods herself.

THE DISCOVERY THAT UNRAVELED EVERYTHING

The investigation began in September 2023 after a CBI intern noticed missing DNA information in a sample Woods had processed in 2018.

That discovery triggered a much broader review.

Investigators found additional alterations and deletions in Woods’ work, eventually identifying 53 cases containing false or misleading laboratory reports connected to her.

Among those cases were 41 that never resulted in criminal charges.

Prosecutors said 32 of those involved women and children who had reported sexual assaults.

According to authorities, Woods deleted values indicating the presence of male DNA and subsequently issued reports stating that no male DNA had been detected.

That meant investigators potentially lost opportunities for additional testing, comparisons and further investigation.

SOME CASES HAD ALREADY REACHED COURT

The impact was not limited to investigations that never produced charges.

Twelve of the 53 cases involved defendants who were charged.

Three went to trial. One resulted in a conviction, while two ended in acquittals.

Woods also pleaded guilty to perjury based on false testimony she gave during the trial that resulted in a first-degree murder conviction.

At least one murder conviction has since been vacated because of the problems surrounding her work.

Michael Clark, who had been imprisoned, was released in 2025 after his lawyers challenged the handling of DNA evidence in his case. Prosecutors have said they intend to seek a new trial.

Other defendants have also challenged convictions or negotiated lesser outcomes after prosecutors raised concerns about Woods’ involvement.

BUT INVESTIGATORS FOUND AN IMPORTANT DISTINCTION

Despite the enormous scope of the scandal, prosecutors said investigators did not find evidence that Woods created false DNA matches, false comparisons or false positive results.

Instead, her misconduct involved manipulating values in laboratory records, deleting information and failing to properly document testing.

Those actions nevertheless affected hundreds of additional cases, even when the changes did not ultimately produce a false laboratory report.

WARNINGS HAD COME YEARS EARLIER

Woods worked for the Colorado Bureau of Investigation beginning in 1994.

According to an internal investigation, concerns about her work had surfaced years before the scandal became public.

A colleague questioned her testing in 2014, and Woods was temporarily removed from DNA-related work in 2018 after allegations of data manipulation.

She eventually resigned from the bureau in 2023.

The case has now forced Colorado authorities to examine hundreds of criminal cases and overhaul laboratory procedures.

Officials have estimated that the response could cost more than $11 million.

“I FAILED THAT RESPONSIBILITY”

In court, Woods apologized and acknowledged the seriousness of what she had done.

She said she had been entrusted with evidence that could have profound consequences for defendants, victims, families and courts — and admitted that she had failed in that responsibility.

Judge Andrew Poland described the conduct as intentional misconduct by a highly trained professional who occupied a position of extraordinary trust.

Now, Woods will spend the next decade in prison.

But for Colorado’s criminal justice system, the consequences may last much longer.

Because when the evidence used to determine what happened can no longer be fully trusted, the question is no longer about one analyst — it is about how many cases may have to be looked at again.