Magazine article Corrections Forum

Good Science or Just Bunk?

Magazine article Corrections Forum

Good Science or Just Bunk?

Article excerpt

Government Technology

An increasing number of police departments and corrections facilities are turning to layered voice analysis (LVA) technology to facilitate the interviewing of suspects. LVA has been used at the Wisconsin Department of Corrections (DOC) roughly 125 times over the past two years, says Dan Westfield, DOC's security chief. He says neither guilt nor innocence is determined by using the technology, but instead it is used to guide the questioning of inmates. The LVA software costs about $10,000, and works by assessing the frequencies of a person's voice as he or she speaks based on algorithms and a mathematical formula, says Dave Watson, chief operating officer at V. He adds that LVA detects patterns that suggest confusion or cognitive dissonance-an uneasiness that results from a discrepancy between what is believed and newly obtained information. …

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