Debra Twomey B.S. after 25-years is retired law enforcement from Prince William County Police Department in Virginia. She spent 15-years as a Crime Scene Investigator and 5 years as a Detective. Debra has a B.S. degree in Administration of Justice. She is a graduate from the Virginia Forensic Science Academy, and later critiqued student crime scenes and was also a guest instructor. She also studied Bloodstain Pattern Analysis with Miami-Dade Police Department in Florida. Debra has received over 1000-hours of training in the field of criminal investigation and crime scene investigation. During her time as a detective Debra was assigned to the Crimes Against Children’s Unit and the Violent Crime Unit. She ended her career examining cold case homicides. Debra has been a part of several high-profile cases within the police agency she worked for and has testified in Prince William County Circuit Court as an expert in crime scene investigations. Debra has received commendations from her police agency, and from the Commonwealth Attorney for Prince William County, Virginia.
Several occasions Debra was assigned to work with outside agencies and conducted case analysis comparisons, dealing with serial sexual related crimes. Debra has also conducted case analysis regarding cold case homicides in an attempt to determine if any previous recovered forensic evidence could now be examined by the Virginia Forensic Laboratory. During her review of cases Debra also determined if anything may have been overlooked during the investigation, statements from victim(s), witnesses, and suspect(s) were examined for inconsistences; and she also included a timeline involving the victim and others involved in the crime..
Debra has also instructed crime scene investigations and criminal investigations for classes conducted at the Prince William County Police Training Academy, and other local police agencies. After retiring Debra was an Adjunct Instructor for the Northern Virginia Community College and overseas as a contract instructor through the U.S. State Department.