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The Weekly: Guilty By Machine
The Weekly: Guilty By Machine

The Weekly: Guilty By Machine

27 min • Business & Technology, Society • 2019

The breathalyzer is one of the most widely used forensic tools in law enforcement, with more than a million Americans arrested each year for driving under the influence of alcohol. But these devices are black boxes — how they work is guarded as closely as a nuclear secret. For years, researchers and defense lawyers have tried to discredit them, highlighting serious flaws with the way the machines are programmed and maintained. States are taking notice, throwing out breathalyzer evidence in tens of thousands of cases. THE WEEKLY investigates how this widely used device became a staple of law enforcement with seemingly little scrutiny. (Episode 26 of 30)
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