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Researchers Say a Breathalyzer Has Flaws, Casting Doubt On Countless Convictions (zdnet.com)

An anonymous reader writes: The source code behind a police breathalyzer widely used in multiple states -- and millions of drunk driving arrests -- is under fire. It's the latest case of technology and the real world colliding -- one that revolves around source code, calibration of equipment, two researchers and legal maneuvering, state law enforcement agencies, and Draeger, the breathalyzer's manufacturer. This most recent skirmish began a decade ago when Washington state police sought to replace its aging fleet of breathalyzers. When the Washington police opened solicitations, the only bidder, Draeger, a German medical technology maker, won the contract to sell its flagship device, the Alcotest 9510, across the state. But defense attorneys have long believed the breathalyzer is faulty. Jason Lantz, a Washington-based defense lawyer, enlisted a software engineer and a security researcher to examine its source code. The two experts wrote in a preliminary report that they found flaws capable of producing incorrect breath test results. The defense hailed the results as a breakthrough, believing the findings could cast doubt on countless drunk-driving prosecutions.

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  1. double dumbass on YOU by Anonymous Coward · · Score: 5, Insightful

    Why did you call him an asshole? He didn't say anything about driving drunk, and it's obviously assumed that everyone is talking about a situation where the driver is sober. But what do you do when a cop wants to test the sobriety? Don't we want to have DWI/DUI laws? If you have these laws, you need some way to investigate suspects. But impaling innocent people (yes, I'm using totally loaded language here, on purpose) is something most of us don't want.

    So a whole game develops in the middle ground of uncertainty. Go too far one way, and you don't really have effective laws against drunk driving. Go too far the other way, and you're poking holes in innocent people to make them bleed. Breathalysers were a great compromise .. if only they hadn't tried to keep the inner workings a secret from the very society that judges the accused, thereby making them bullshit "evidence." FAIL.

    Open up the breathalysers to auditing and maintenance and you'll have a useful technology. Just like we eventually determine with everything else that's important (e.g. the software in your desktop computer). Anything you can't audit, is bullshit.