U.S. flag

An official website of the United States government, Department of Justice.

Principles of Forensic DNA for Officers of the Court

Proficiency Testing

Home  |  Glossary  |  Resources  |  Help  |  Contact Us  |  Course Map

A DNA proficiency test uses biological samples to assess a lab analyst's ongoing competency and the laboratory's ability to produce accurate results.

There are different types of proficiency tests:

  • An external test is created and administered by an outside agency
  • An internal test is created and administered by the laboratory itself
  • In a blind test, analysts do not know they are being tested. In most forensic DNA laboratories, blind tests are not used

Online Link - Click here to view the NIJ report, Developing Criteria for Model External DNA Proficiency Testing.

Back Forward