Smartphones that can tell if you're drunk

Using the accelerometer in your phone to tell you if you're over the driving limit...
01 September 2020
Presented by Chris Smith
Production by Katie Haylor.

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A hungover man collapsed face down on a table cradling a bottle.

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Drink driving is one of the biggest killers on our roads - according to the road safety charity Brake, in 2017 there were at least 250 alcohol-related deaths. Brian Suffoletto is an A&E doctor in the US where he’s spent the past 15 years developing digital interventions to stop people drinking and driving. Lately he’s been working on a system that uses a smartphone to analyse the way a person walks to pick up on subtle giveaways that they’re over the limit. Katie Haylor heard how it works...

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