Polygraph useful in screening Border Patrol candidates

Data collected by US Customs and Border Protection shows that the polygraph is effective in identifying criminals applying for badged positions that had been missed by all other screening methods, and that polygraph screening significantly cuts the incidences of post-hiring malfeasance over candidates who did not undergo the polygraph test. 

For the full story, go to: http://www.thedailybeast.com/articles/2013/04/04/on-polygraph-tests-would-be-border-patrol-agents-confess-to-crimes.html