ACLU Urges Colorado Supreme Court to Require State to Address Cases Tainted By Officials’ Misconduct

DENVER — The American Civil Liberties Union, the ACLU of Colorado, and the Exoneration Project submitted an amicus brief today urging the Colorado Supreme Court to order systemic remedies for thousands of defendants harmed by egregious misconduct and a long-running cover-up in a state DNA lab.

During her 29-year tenure as a DNA analyst for the Colorado Bureau of Investigation (CBI), Yvonne “Missy” Woods worked on tens of thousands of criminal cases. She manipulated data and tampered with evidence in many of those cases. Although Woods’s coworkers flagged her misconduct in 2014 and 2018, CBI supervisors covered it up. That cover-up withheld exculpatory evidence from criminal defendants, and Woods’s misconduct continued until 2023.

Once the CBI belatedly investigated Woods in 2023, it found that she had altered or deleted data in at least 1,045 cases. However, the lab’s decade-long cover-up meant that a significant amount of instrument data had been lost, making it impossible for many other defendants to prove that Woods committed misconduct in their cases. Woods was sentenced to 10 years in prison for her fraud.

Under the U.S. and Colorado Constitutions and Colorado law, CBI is part of the prosecution team in every case in which it provides DNA evidence and therefore had a duty to disclose Woods’ misconduct. It failed that duty here.

“Missy Woods’ repeated mishandling of critical forensic evidence and CBI’s subsequent cover-up was a profound disgrace. Colorado’s failure to notify defense teams of this fraud left thousands of accused people without access to potentially exculpatory evidence,” said Emma Mclean-Riggs, ACLU of Colorado senior staff attorney. “The Colorado Supreme Court should take forceful, systemic, and proactive action to protect the fairness of Colorado courts and address the harms this fraud caused.”

The ACLU and Exoneration Project brief argues that the systemic nature of the government’s misconduct warrants systemic remedies. In particular, the brief asks the Colorado Supreme Court to put the burden of remedying the state’s misconduct on the state, rather than on the defendants harmed by the misconduct. This means requiring the state to affirmatively prove in every Woods-involved case that she did not commit misconduct.

“For almost 10 years, the CBI knowingly allowed Missy Woods’ fraud to go unchecked. This is more than just one rogue analyst; this is a lab-wide cover-up that tainted over 10,000 cases. Government misconduct of this magnitude undermines the integrity of the entire justice system. It is the state’s responsibility to right its wrongs and rebuild the public’s trust, and the court should order the state to do just that,” said Terry Ding, Senior Staff Attorney with the ACLU’s State Supreme Court Initiative.

Contrary to the state’s insistence that it should not have to do anything outside the 1,045 cases involving confirmed misconduct, the brief also explains that the loss of older data means many more cases were likely affected, even if definitive proof is no longer available. Citing other cases in which state supreme courts have addressed similar government misconduct in their states, the brief asks the Colorado Supreme Court to provide proper relief and deter future misconduct.