Using a computer algorithm, thermal imaging, and artificial neural networks, researchers in Greece are now able to pinpoint with 90% accuracy whether or not a person is drunk or not.

Chances are, if you’ve had a few drinks, you’ve probably experienced rosy cheeks, feeling hot and flushed, and in some cases a “glow” about your person. The consumption of alcohol leads to very pronounceable physical results. It expands and widens blood vessels, causing blood to rush closer to the surface of your face.

This is the phenomenon that researchers are using to determine the difference between a drunk and sober person.

Algorithms compared the flush on sober (left) versus drunk (right) faces one pixel at a time. Image: Koukiou and Anastassopoulos/Forensic Science International, 2015 via Popular Science

. Image 1.Algorithms compared the flush on sober (left) versus drunk (right) faces one pixel at a time. Image: Koukiou and Anastassopoulos/Forensic Science International, 2015 via Popular Science

What gives a person away? Temperature, specifically the temperature of your nose and forehead. The scientists are hoping that this latest advance in drunk technology will be able to law enforcement officers identify trouble before it starts and automotive manufacturers with from preventing drunk motorists from getting behind the wheel.