It's not rare that people who illegally drive after drinking fool the breath alcohol detector by simply not blow-ing into it, but Shanghai police will soon block this trick with an adapted detector.
The new version will add a whistle to the mouthpiece to prove the driver really blows into the device.
The adaptation was devised by a traffic police officer in Jinshan District and in recent trials has shown positive results.
The new breathalyzer was tested on Tuesday night n Jinshan District At least three drivers passed the test with the existing model — including one police say smelled clearly of alcohol – but failed the whistle version.
One blew a reading of 85 milligrams per 100 milliliters, more than four times the legal limit of 20mg/100ml.
The new device takes the old mouth-piece and adds a whistle hole in the middle. Police said the new breatha-lyzer will be introduced in other districts next year.
