SOURCE: WIRED

SITTING IN FRONT of a Converus EyeDetect station, it’s impossible not to think of Blade Runner. In the 1982 sci-fi classic, Harrison Ford’s rumpled detective identifies artificial humans using a steam-punk Voight-Kampff device that watches their eyes while they answer surreal questions. EyeDetect’s questions are less philosophical, and the penalty for failure is less fatal (Ford’s character would whip out a gun and shoot). But the basic idea is the same: By capturing imperceptible changes in a participant’s eyes—measuring things like pupil dilation and reaction time—the device aims to sort deceptive humanoids from genuine ones.

It claims to be, in short, a next-generation lie detector. Polygraph tests are a $2 billion industry in the US and, despite their inaccuracy, are widely used to screen candidates for government jobs. Released in 2014 by Converus, a Mark Cuban–funded startup, EyeDetect is pitched by its makers as a faster, cheaper, and more accurate alternative to the notoriously unreliable polygraph. By many measures, EyeDetect appears to be the future of lie detection—and it’s already being used by local and federal agencies to screen job applicants. Which is why I traveled to a testing center, just north of Seattle, to see exactly how it works.

Jon Walters makes an unlikely Blade Runner. Smartly dressed and clean cut, the former police chief runs Public Safety Testing, a company that conducts preemployment tests for police forces, fire departments, and paramedics in Washington State and beyond. Screening new hires used to involve lengthy, expensive polygraph tests, which typically require certified examiners to facilitate them. Increasingly, however, Walters tells me, law enforcement agencies are opting for EyeDetect.

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