Our Work

System Partner Communication and Hit Follow-up

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Overview

If there is a problem that has vexed the entire forensic DNA community since the inception of the CODIS system, it is the inability to track DNA cases through the system – from evidence collection, through testing to database input, to database hit and follow-up investigation, arrest, prosecution, result, and sentence. For the billions of dollars spent on DNA analysis, database development, legislative efforts, investigative and prosecutorial hours, drawing a line between that investment and the ultimate outcome is elusive. In a recent poll of CODIS laboratories, 70% of respondents indicated that they received outcome notifications for less than 10%. There is little to no systemic ability to connect, let alone correlate, the relation between a given DNA technique, database, source of evidence, or judicial outcome.

The challenge of tracking a DNA profile from crime scene collection through to conviction and sentencing is challenging due to systemic, technical, and legal limitations at nearly every stage of the forensic and judicial process.

  • Reasons include:
  • Siloed Data Systems
  • Lack of National or Statewide Tracking Mandates
  • CODIS Limitations
  • Lack of Connectivity to Prosecutorial or Judicial Systems

Success Stories

Georgia’s long-standing investment in DNA hit tracking and collaboration among the state crime lab, corrections agencies, probation offices, and local law enforcement has produced substantial results. In 2017, the state recorded its 6,000th offender DNA hit, with CODIS averaging approximately 500 offender matches annually. State officials attribute the success to expanded DNA collection laws and strong coordination among agencies responsible for collecting, processing, and uploading DNA profiles.

California’s statewide DNA Data Bank demonstrates the power of coordinated DNA collection and hit tracking. The program has generated thousands of matches between crime scene evidence and offender profiles, supporting investigations across numerous jurisdictions. State officials report that the database has aided more than 12,000 investigations and contributed to thousands of convictions, underscoring the importance of collaboration between state laboratories, local agencies, and prosecutors.

Washington’s lawfully owed DNA initiative is a notable example of end-to-end tracking. The state coordinates among courts, local law enforcement, jails, corrections, the Attorney General’s Office, and the state crime lab to ensure offenders who are required to provide DNA do so at sentencing or afterward. Crime scene DNA is uploaded to CODIS and continuously searched against offender profiles. By 2024, the initiative had added more than 3,000 profiles and generated 105 CODIS hits, leading to reopened investigations and prosecutions. The state also enacted legislation requiring courts to establish time-sensitive DNA collection protocols at sentencing to prevent offenders from slipping through the cracks.

Key Center Activities in this Area

Identifying Pilot Sites

The Center will assist in identifying five pilot sites, provide initial $50,000 start-up funding, and support the implementation of a program that will track the process and impact of DNA utilization from crime scene through sentencing.

Provide Recommendations

The Center will study the process and the results from the pilot projects and provide recommendations.

Uplift Research and Information

The Center will uplift research and information from other Arnold Ventures-funded grantees who are working on Hit Tracking issues.

Explore Our Work

Uniquely Positioned for Impact

The NCJA Center for Forensic DNA Policy & Practice serves as the national hub for advancing, assessing, and connecting critical areas of forensic DNA system improvement.

Forensic DNA in the States

Explore the State DNA Policy Map

See how each state legislates the implementation of different forensic DNA technologies.