Denver Crime Lab Backlog Raises Alarms Over Delayed Justice

Evidence Backlog Leaves Cases in Limbo

A growing backlog of untested evidence at Denver’s crime lab is raising alarm among prosecutors, defense attorneys and crime victims, according to a 9News report published this week detailing how staffing shortages have left DNA samples, drug evidence and other forensic material waiting months for analysis.

The report found that Denver’s forensic scientists are struggling to keep pace with the volume of evidence flowing in from police investigations across the city, a problem compounding as violent crime cases — including recent homicides and shootings covered extensively in local news — continue to generate demand for timely lab work. According to 9News, the shortage of trained analysts has created a bottleneck that ripples through the entire criminal justice system, from initial charging decisions to trial dates set months or even years out.

How the Backlog Affects Real Cases

The consequences of delayed forensic testing are not abstract. When DNA, ballistics or toxicology results are pending, prosecutors often cannot move forward with charges or plea negotiations, and defense attorneys cannot adequately prepare their clients’ defenses. Defendants — some held in jail awaiting trial — can find their cases stretching on indefinitely while evidence sits untested on a shelf.

For victims and their families, the wait can be its own form of trauma. Closure in criminal cases frequently hinges on forensic confirmation, whether it’s a DNA match tying a suspect to a scene or a toxicology report clarifying the cause of a fentanyl-related death. Denver has seen a string of such cases in recent weeks, including the arrests of two suspected fentanyl dealers connected to separate overdose deaths, reported by Denver7 this week. Cases like these often rely heavily on lab-confirmed toxicology results to move forward — results that, per the 9News report, are now taking considerably longer to produce.

Homicide investigations are similarly affected. A recent murder-suicide investigation north of Denver and the fatal shooting of a teenager at Montbello Recreation Center — which led to the arrest of a juvenile suspect, according to CBS News and the Denver Gazette — both depend on forensic evidence to build airtight cases for prosecution. When lab turnaround times stretch from weeks into months, it can delay everything from arraignments to trial scheduling, keeping uncertainty alive for victims’ families and defendants alike.

Law Enforcement’s Dilemma

For police and prosecutors, the backlog represents a frustrating obstacle to public safety goals. Timely forensic results are often essential to holding suspects accountable and, in some cases, to clearing individuals wrongly implicated in a crime. Denver has grappled with a series of high-profile violent crime incidents this spring, including a rollover crash during a police pursuit involving robbery suspects, some of them teens, according to CBS News. Cases with multiple young suspects, overlapping charges and time-sensitive evidence add extra pressure on a lab system already stretched thin.

Compounding the strain, Denver’s police department has faced additional internal turmoil in recent days. A secret report alleged that a Denver police commander created a “bullying, abusive work environment,” according to CBS News reporting this week. While that controversy is separate from the crime lab’s staffing issues, it underscores a broader pattern of institutional strain within Denver’s public safety apparatus — strain that critics say can affect morale, retention and the department’s ability to attract and keep qualified forensic personnel.

Defense Attorneys Raise Due Process Concerns

Defense attorneys have long argued that delays in forensic testing disproportionately harm defendants who are presumed innocent but remain in custody awaiting trial. The longer a case sits without conclusive evidence, the harder it can become to secure witnesses, preserve memories accurately, and ensure a fair and speedy trial — a constitutional right that due process advocates say is increasingly difficult to guarantee when crime labs are under-resourced.

While 9News’ reporting did not detail specific attorney interviews, the structural concern is well established in criminal justice circles nationally: backlogged labs can create a two-tiered system where wealthier defendants may pursue private forensic testing while others wait on public lab timelines that stretch indefinitely.

Budget Pressures and City Priorities

The staffing shortage comes at a politically sensitive moment for Denver’s finances. This week, Denver City Council shared its 2027 budget goals with Mayor Mike Johnston, according to a release from the City and County of Denver, signaling early discussions over how the city will allocate limited resources across competing priorities next year. While the budget announcement did not single out the crime lab specifically, it arrives amid broader questions about how the city funds public safety infrastructure — including forensic services that fall outside the more visible police patrol and staffing numbers that typically dominate budget debates.

City leaders face difficult trade-offs: expanding forensic lab capacity requires hiring specialized scientists, who are in short supply nationally and require lengthy training and certification periods, all while the city weighs other pressing needs. Denver’s recent unanimous City Council vote to pause construction of new data centers for one year, reported by CBS News, is one example of the city grappling with growth and infrastructure decisions that could ripple into future budget conversations, including how technology and specialized public services are funded.

What Comes Next

There is no quick fix to a national trend of understaffed forensic labs, a challenge that has affected police departments and crime labs across the country for years. But for Denver, the stakes are immediate. Every case awaiting DNA confirmation, every family awaiting toxicology results on a loved one’s death, and every defendant sitting in custody without resolution represents a real cost of the backlog described in the 9News investigation.

Whether the city’s 2027 budget process will address forensic staffing directly remains to be seen. For now, prosecutors, defense attorneys and victims’ advocates alike are left watching a system under strain — one where justice, as many in the legal community frame it, delayed can too easily become justice denied.

Front Range Report will continue following this story as Denver’s budget process unfolds and as more details emerge about how the city plans to address the crime lab’s staffing shortages.