From the BBC:
Pub-goers in Aberdeen are facing a drugs test before entering bars as part of a crackdown by Grampian Police.
Officers in the force will be the first in Scotland to use an Itemiser - a device which can detect traces of drugs from hand swabs in a matter of seconds.
The test is voluntary, but customers will be refused entry if they do not take part. They could be searched and even arrested if traces are found.
The device was trialled by the police force in the area earlier this year.
The Itemiser allows police officers or door staff to swab customers hands as they enter a pub or club. It can tell almost instantly if drugs are present - including cocaine, cannabis, heroin and ecstasy.
The device can show three possible results: green, amber or red.
Customers who get a green reading are allowed entry to the pub, those who get amber are given a drug information pack and those who get red could be searched by police.
If drugs are found on that person they could be arrested and a report could be sent to the procurator fiscal.
Police said the device deters unwanted drug dealers.
Yep. We should definitely adopt those enlightened European ways.
[h/t Drug War Rant]