Serology / DNA Unit - official website of THE LOS ANGELES POLICE DEPARTMENT

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The LAPDonline.org® website has made reasonable efforts to provide an accurate translation. However, no automated or computerized translation is perfect and is not intended to replace human or traditional translation methods. The official text is the English version of the LAPDonline.org® website. If any questions arise concerning the accuracy of the information presented by the translated version of the website, please refer to the English edition of the website, which is the official version.

Serology / DNA Unit

Located at the Hertzberg-Davis Forensic Science Center (HDFSC) and Piper Technical Center, this unit analyzes evidence for the presence of biological material to develop DNA profiles. The analytical process is divided into two primary activities, screening and profiling. Screening involves examination of evidence items collected from crime scenes to locate biological evidence that is probative to the resolution of the crime. Once probative biological evidence is located, a DNA profile is developed to compare to a known source, such as a suspect or victim, or uploaded into the Combined DNA Index System (CODIS) for searching against State and Federal databases of known offenders.