This document provides an overview of the history of forensic DNA typing. It discusses how in 1980, Ray White described the first polymorphic RFLP marker and in 1985, Alec Jeffreys discovered multilocus VNTR probes. It then outlines some of the major developments in DNA typing techniques between 1985-1998, including the first use of PCR in 1985 and the FBI starting their DNA casework in 1988. The document also provides brief descriptions of the principles, steps, techniques, advantages, disadvantages and applications of DNA typing.