With the advent of new, faster, more
precise DNA testing, collecting evidence such as blood and body fluids from
crime scenes has become even more important than before. This evidence must
be collected properly for accurate test results.If the blood stain is
damp, dab one sterile cotton swabs on the stain. If the stain is dry, wet
the swab with distilled water and dab on the stain. Wet a second swab with
distilled water and swab the background surface near the stain without
touching the stain. The second swab is used to determine if any contaminants
may be on the background. At the end of the collection process, also wet two
swabs with distilled water only. This is a control sample to show that your
distilled water did not contain any contaminants.
Once you get them back to your office, you must dry the swabs before
packaging. Here is a swab dryer, a case for carrying the swabs from the
crime scene and packages of sterile cotton swabs. The Swab Dryer is 8" W
× 13.5" L × 8.5" H. The rack inside holds 18 swabs at one time. There
are nonskid feet on the bottom for placing the dryer on a counter and two
key hole attachments on the back, for mounting. A timer comes with the dryer
so you are reminded to take the swabs out. The Rack and Carrying Case is
used to transport the swabs from the crime scene to your office in a clean
container.
