The test you discover within two minutes if you've consumed drugs.

A technique to identify cocaine users has been developed at Surrey University's laboratory.

The test is simple, and within 2 minutes it can detect and distinguish who has consumed cocaine and who is wrongly exposed to this drug, even though he may have washed his hands. The technique is based on chemicals that emerge from sweat.

Scholar Dr. Ming Young from the chemistry department at Surrey University says: “Fingers are a very good way to test people if they've consumed narcotics, because it's simple and efficient to collect”.

Benzoylegonia, which is produced in the body of a cocaine addict, makes the comfort between those who consumed it and those who just touched it.

Dr. Croatia Costa explains that this technique can be used to reveal people who have consumed heroin, cannabis, or amphetamine.