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Updated: Jul 5, 2025

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Avoiding genetic racial profiling in criminal DNA profile databases.

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This study introduces a privacy-preserving method for searching DNA profiles in criminal databases like CODIS. It allows broad searches while protecting innocent individuals from potential racial profiling and data retention.

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Area of Science:

  • Forensic Science
  • Computer Science
  • Privacy-Enhancing Technologies

Background:

  • DNA profiling is crucial for criminal investigations, with systems like the Combined DNA Index System (CODIS) widely used.
  • Concerns exist regarding the retention of DNA profiles of all searched suspects, potentially leading to privacy violations and racial profiling.

Purpose of the Study:

  • To develop a real-time, privacy-preserving procedure for querying CODIS and similar DNA databases.
  • To enable comprehensive DNA profile searches while safeguarding the privacy of exonerated individuals.

Main Methods:

  • A novel approach for private and efficient querying of DNA profiles directly from a suspect's device in the field.
  • Implementation of a procedure where the central database remains unaware of the queried profile, preventing its retention.

Main Results:

  • The proposed method allows for broad DNA profile searches against criminal databases.
  • The system ensures that the central database does not learn or retain information about the queried DNA profile, thus preserving privacy.

Conclusions:

  • This approach facilitates privacy-preserving DNA profile searching in CODIS and other DNA index systems.
  • It offers a solution to balance the utility of DNA databases in law enforcement with the protection of individual privacy.