What evidence from the victim of a sexual assault is studied in CSI?
When a sexual assault occurs, the victim is brought to a medical facility where certain items of evidence are collected. Specifically vaginal swabs, anal swabs and oral swabs. In addition, the victim's pubic hair area is combed to collect any foreign hairs or debris that may be present. Collections are made of the head hair controls from the victim, as well as the pubic hair controls as well. Of course, all of the clothing from that victim is gathered up and sent to the crime lab. What's also important is a search for drugs. On some occasions, the victim may be drugged. By collecting blood and urine, the forensic toxicologist can look for the presence of these types of substances. And of course we can't forget DNA. We must have the DNA type of the victim, and this would be obtained through what we call a bugle swab. That is swabbing the inner surface of the cheek to collect cells that would ultimately be used to identify that victim's DNA.