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https://www.secretsofsurvival.com/survival/how-to-evade-and-escape-tracking-dogs.html
A trick that could work, in theory, to fool tracking dogs
With all that in mind, I'd like to propose a tactic that could serve to confuse tracking dogs and really cause the handler to not only doubt his dogs, but to scratch his head, trying to figure out what direction you are actually heading (if you're going to repost this trick on a website or message board, we appreciate an attribution to SecretsofSurvival.com).1. Drill or burrow small holes in the bottom of a bucket with a
survival knife (you can't go wrong with a Marine Corps KA-BAR) so that a small amount of water drips out -- a very small amount of water. Now, fill the bucket with water (from a lake, pond, or river) and then rinse your hands, feet, face, and hair with the water in the bucket so that the water is contaminated with your dead skin cells.
2. Now, either a second person or even a moving vehicle (hang the bucket from a truck trailer hitch, for example, or even a small raft made of tree branches pushed down a river or let loose on to a lake) will gradually drip water from that bucket, creating a strong false trail in a direction you do not plan to travel.
3. Next, shed your clothing and rub your body thoroughly with
Vaseline (also a product for first aid kits) or another petroleum jelly product (petroleum jelly should greatly reduce the amount of skin cells being shed by your body for a short period of time), including your hair. Everything on your body must be thoroughly coated in Vaseline.
Remember, tracking dogs scent on our dead skin cells and not so much as our individual body odor. If we can stop these skin cells from falling for a period of time, in theory we can get out of the area without leaving a trail of skin cells that leads in our direction of travel.
4. Finally, a last step, if you can pull this off --
have a second batch of clothing and shoes (that have been worn by someone else in recent days and have not been washed and so are carrying someone else's skin cells) waiting for you a few hundred yards away or so. Re-coat your body in petroleum jelly (so that the first coat doesn't wear off yet) and then throw on this new set of clothing and shoes.
5. Get out of Dodge while the tracking dogs are chasing your scent in the wrong direction.