| forensic science |
LOCARD'S PRINCIPLE:
You were lying on your shag carpet watching television while petting your Yorkshire Terrier. You walk through
some dirt on your walkway before entering your car and placing your feet on the carpet of your floor mat.
Now, you go to a grocery store but hop across a flower bed with fresh potting soil in it - a specific mix of
Nitrogen, Potassium and Phosphorous - someone was working on it earlier today!
After going to the store, you come back home.
Now....each place you went and everything you touched transferred from one location to another. In your home,
you'd find traces of the potting soil from the grocery store parking lot and in the grocery store, you could find (if
you knew how to look for it) your dog hairs, carpet hairs at home and from your car and the dirt from your
walkway.
Also, on your body and clothing are tiny pieces of evidence of where you've been all day! Annoying right?
Not for crime scene investigators! This is the type of evidence that most criminals do not have the training or
knowledge on how to prevent!
You were lying on your shag carpet watching television while petting your Yorkshire Terrier. You walk through
some dirt on your walkway before entering your car and placing your feet on the carpet of your floor mat.
Now, you go to a grocery store but hop across a flower bed with fresh potting soil in it - a specific mix of
Nitrogen, Potassium and Phosphorous - someone was working on it earlier today!
After going to the store, you come back home.
Now....each place you went and everything you touched transferred from one location to another. In your home,
you'd find traces of the potting soil from the grocery store parking lot and in the grocery store, you could find (if
you knew how to look for it) your dog hairs, carpet hairs at home and from your car and the dirt from your
walkway.
Also, on your body and clothing are tiny pieces of evidence of where you've been all day! Annoying right?
Not for crime scene investigators! This is the type of evidence that most criminals do not have the training or
knowledge on how to prevent!
Here are some types of trace evidence that you can
pick up and transfer throughout the day. These can all
ultimately be considered as pieces of evidence at a
crime scene:
pick up and transfer throughout the day. These can all
ultimately be considered as pieces of evidence at a
crime scene:
- Hair from your body, your pets, your friends and family.
- Fibers from the carpets you've walked on or sofas you have sat on or even brushed
against - Dirt from floors, walkways, flower beds, gravel drives, etc.
- Fibers from ventilation systems
- Paint chips from walls, cars, furniture
- Plant material from the floor or a lawn / park / walkway
- Fibers from your clothing such as a mohair sweater
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| NOW AVAILABLE Volume I in the Fiona Frost Murder Mystery novel series by Dr. Bon Blossman. |
