While Uber has changed the way that many think about transportation, it’s also changed the way that many drunk people find their way home at night. Rather than haphazardly hailing a cab or driving home under the influence, Uber provides a relatively safer way to get from point A to B on an indulgent evening.

The company has applied for a patent with the United States Patent and Trademark Office for a system that would use machine learning to determine the ‘state’ of a passenger.

While the patent limits itself to a dry discussion of ‘user state,’ it seems that what Uber is really interested in is detecting the difference between users of sound mind and users who are under the influence.

Excerpt from TechCrunch.