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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 x
13.5" L x 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. |
