DNA is the unique genetic code that determines many of our individual human characteristics. DNA is found in most human cells, and except in the case of identical twins, each person has their own unique DNA code.
After the crime lab identifies and analyzes a DNA profile from a suspect, law enforcement can use this evidence in several ways:
Not all sexual assault evidence collection kits yield DNA evidence. DNA evidence may not be found if:
The absence of DNA does not mean that no crime occurred.
This project was supported by Grant #2009-WF-AX-0014 awarded by the Violence Against Women Grants Office, Office of Justice Programs, U.S. Department of Justice to the Massachusetts Executive Office of Public Safety & Security Office of Grants & Research and subgranted to the Boston Area Rape Crisis Center. Points of view in this document are those of the author(s) and do not necessarily represent the official position or policies of the U.S. Department of Justice or the Massachusetts Executive Office of Public Safety Programs Division.