Source: BBC News
Researchers in the US say they have developed a low-cost chip that can detect cocaine in minutes.
The team hopes it will lead to the development of a portable cocaine breathalyser that can tell if a person has used the drug.
At present, it says the chip can only analyse substances extracted from blood, breath, urine or saliva samples using a purification process.
One road safety group called the research “exciting”.
The new chip is significant because it costs only a few pence to produce.