The legal system, in both the criminal and civil arenas, may well be revolutionized by the advent of forensic DNA typing. One state trial judge has written that DNA typing “can constitute the single greatest advance in the ‘search for truth,’ and the goal of convicting the guilty and acquitting the innocent, since the advent of cross examination.” People v. Wesley, 140 Misc.2d 306, 533 N.Y.S.2d 643 (Co. Ct. 1988). A prominent professor in the field of law and forensic sciences believes that “DNA analysis will be to the end of the 20th century what fingerprinting was to the 19th.” The Washington state legislature has found the accuracy of DNA identification to be superior to that of any presently existing technique, and the Maryland General Assembly has proclaimed DNA identification to have been refined to a level of scientific accuracy that approaches an infinitesimal margin of error. Indeed, the forensic applications of DNA typing are limited only by the circumspection of the criminal mind. Regardless of the type of crime committed, whenever trace evidence appropriate for DNA analysis is left behind by the perpetrator and later recovered by the police, the test results can be an important investigative tool. Most frequently, such evidence will be found as a result of violent crimes. With 92,490 rapes and 20,680 homicides in the United States in 1988, the forensic application of DNA typing should significantly increase the arrest and conviction rates. The use of DNA typing is not confined to those cases in which body fluids, hairs, or tissue are left at the crime scene or on the victim by the perpetrator, thereby connecting a suspect to the scene or victim. Just as common is the situation where evidence is left by a victim on the suspect or the suspect’s belongings, which will establish previous contact between the accused and the victim. The Joseph Castro case is an example of this situation. He was accused in New York of stabbing to death a 20-year-old woman who was seven months pregnant and her 2-year-old daughter.