U.S. flag

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

Principles of Forensic DNA for Officers of the Court

History and Development of Forensic DNA Analysis

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

The foundation for modern DNA testing originated in the application of conventional genetic marker typing methods, once the mainstay of forensic science.

Methods such as ABO blood typing and iso-enzyme (or protein) typing were used to compare biological evidence with known or reference samples.

Back Forward