How can you conceal drugs from drug-sniffing dogs?

Mudassir Ali
Feb 20, 2020 05:09 AM 0 Answers
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Mudassir Ali
- Feb 20, 2020 05:09 AM

It is actually enormously difficult to conceal drugs from well-trained sniffer dogs.

The ‘usual’ schemes that people dream up simply don’t work at all.

Mostly they involve ‘masking’ the smell by surrounding the drugs with something with a stronger smell (coffee grounds, perfume, whatever). This shows a profound lack of understanding of how a dog’s sense of smell works.

The way it was explained to me (by an uncle in the police who trained sniffer dogs in the UK) is that a dog’s sense of smell works more like our vision than our sense of smell.

Let’s say someone offers you a reward for spotting red balls on a pool table. The red ball represents the smell of the drug.

One red ball is put in the middle of the table. How easy is it for you to see that?


Now, someone tries to ‘cover up’ the red ball by surrounding it with 50 white balls (representing another substance with a smell 50x stronger than the drug). How easy is it now for you to spot one bright red ball in the middle of a bunch of white ones?

Still very easy.

So – ‘masking’ smells doesn’t work.

The other main approach is to try and stop the smell from escaping, by putting the drug in multiple layers of wrapping. In this case, the issue isn’t a lack of understanding of how a dog’s sense of smell works, it’s a lack of understanding of how smells work in general.

Wrap your drugs up in plastic. The smell will escape through any gap in the plastic that isn’t 100% air-tight. Even if it IS 100% air tight, molecules from the drug will quickly begin to diffuse through the plastic and will get into the air in time (length of time depends on exactly what material is used).

PLUS, you put the drugs in the package, seal it up (100% air tight remember, ZERO molecules escaping) and, guess what?

You touched the outside of the package with your hand (doesn’t matter if it’s gloved or not – either way you still touched it).

The scent of the drug was on your hand. Your hand touched the outside of the package when you sealed it. therefore – the scent is now on the outside of the package.

SO you put a second layer on. Guess what? Same problem.

The same goes for the 3rd, 4th, 5th layer.

You would need to package the drugs in some material that doesn’t readily allow scent to pass (eg mylar). THEN clean your hands AND the outside of the package with both polar and non-polar solvents. Then, preferably in a different room (those molecules will be in the air by now, too) repeat. Then repeat again.

That should keep it ‘dog proof’ for at least a period of a few days.

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