Archive of posts tagged PCSOT

Polygraph Operator Ken Blackstone Under Investigation for Perjury

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Terry Dickson reports for the Florida Times-Union that polygraph operator Kenneth E. Blackstone of Atlanta, Georgia is under investigation for perjury in connection with a death penalty murder case: Guy Heinze Jr.’s polygraph examiner under investigation for truthfulness in court Posted: July 18, 2013 – 9:01pm  |  Updated: July 18, 2013 – 9:14pm By Terry …

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Chris French on Polygraph Screening of Sex Offenders

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Professor of psychology Chris French writes for the Guardian on why mandatory polygraph screening of convicted sex offenders is a bad public policy choice. Excerpt: It is clear that offenders only have to spend five minutes on Google to realise that experts generally agree that polygraph testing is in fact not a reliable technique for …

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