Last post, I covered some generalizations about how a sexual assault victim is managed in the ED. Today, I’m going to get into specifics about how a rape kit or Sexual Assault Examination (SAE) kit is collected.
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The sexual assault victim is a crime scene. Medical needs always come first. If the victim presents with life threatening injuries, these will be managed first above everything else. Collection of evidence will come at a point when the patient is stable.
In the kit are generally some large paper drapes. On the ground, we’ll lay out two large bed sheets with the towel on top. The patient (assuming she is wearing the same clothes at the time of the attack) is asked to undress in the middle of these sheets and then given a gown to wear.
Each piece of clothing is bagged in a different paper bag and labeled. I do a piece of clothing, time, date and my initials. Plastic bags are never used. Moist things in plastic will mold and disintegrate and this can damage valuable evidence.
Once the clothes are bagged, each of those sheets are bagged individually as well. This is done in hopes of collecting trace evidence that may have dropped off the patient as she unclothed.
Next, it is important to know the details of the assault as this will dictate what pieces of evidence are collected.
Mouth swabs are collected. They do need to dry before being placed in either an envelope or small cardboard box designed for these swabs.
Fingernail scrapings are collected and fingernails are also trimmed and collected as well.
The pubic hair is combed and any debris is collected in an envelope. The comb is placed there as well.
Probably one of the most humiliating parts of the exam for the victim is that known hair samples need to be collected from their head and pubic area. These must be pulled from the victim. The hair cannot be cut. The point of this is to get the hair shaft that contains DNA so this can be compared to other DNA samples that are combed off the victim.
Blood samples are collected.
If residual fluids are left behind, these are swabbed as well. Any place where the victim may have been bitten will also be swabbed.
Remember, all swabs need to be air dried before they are placed in an envelope or cardboard container. This takes time.
Photographs are taken.
For additional information on collection of a rape kit, check this source: http://www.enotes.com/forensic-science/rape-kit.