Use of DNA by the Criminal Justice System and the Federal Role: Background, Current Law, and Grants [Updated January 29, 2021]   [open pdf - 1MB]

From the Summary: "Deoxyribonucleic acid, or DNA, is the fundamental building block for an individual's entire genetic makeup. DNA is a powerful tool for law enforcement investigations because each person's DNA is different from that of every other individual (except for identical twins). DNA can be extracted from many sources, such as hair, bone, teeth, saliva, and blood. DNA samples can be collected at crime scenes, from people who might have been present when the crime occurred, and from crime victims. The information obtained from these samples is then compared with other DNA profiles to both eliminate and identify suspects in a criminal investigation. In the 1980s, states began enacting laws that required the collection of DNA samples from offenders convicted of certain sexual and other violent crimes. The samples are analyzed and their profiles are entered into state databases. In the late 1980s, the Federal Bureau of Investigation (FBI) Laboratory convened a working group of federal, state, and local forensic scientists to establish guidelines for the use of forensic DNA analysis in laboratories."

Report Number:
CRS Report for Congress, R41800
Public Domain
Retrieved From:
Congressional Research Service: https://crsreports.congress.gov/
Media Type:
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