The fingerprint test can distinguish in just a couple of minutes between those who have taken it or simply been exposed by mistake – even after they have washed their hands
A simple and quick fingerprint test to identify cocaine users has been developed.
It can distinguish in just a couple of minutes between those who have taken it or simply been exposed by mistake – even after they have washed their hands.
The groundbreaking technique could lead to the screening of staff – especially in workplaces where public safety is an issue.
It could also aid drug rehabilitation, the management of offenders and coroners when a body first arrives at a mortuary. It is based on chemicals excreted in sweat.
Study co-author Dr Min Jang, of the department of chemistry at the University of Surrey, said: “A fingerprint is a great way to test for drugs as it is so quick and efficient to collect.
“Using our methodology, it is possible to analyse a fingerprint sample for drugs in less than 2 minutes.”
The molecule was not present in samples from non-users of the Class A drug, even after touching street cocaine and then washing their hands.
Lab member Dr Catia Costa said it could also be used for heroin, cannabis or amphetamines.
She said: “We are excited about the possibilities for fingerprint drug testing. In addition to illicit drugs, we have found we can detect pharmaceutical drugs in fingerprints.
“We are keen to see if we can use this to help patients to check their medication is being delivered at the right dose.”
Source: Mirror
