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Posted by George W. Maschke
 - May 15, 2009, 03:15 PM
Paula,

The polygraph can be useful for interrogating suspects who do not understand that the lie detector is a sham. People who think that the lie detector will detect any deception may choose to be more honest than they would otherwise be.

However, polygraph "testing" has no scientific basis. The procedure is inherently biased against the truthful, and deceptive persons who understand polygraph procedure can use simple techniques called countermeasures to pass.
Posted by paulia84
 - May 15, 2009, 03:04 PM
Welcome all,
The subject of possibility of detecting by poligraf the corruption be interested. Do some techniques exist , which make possible this ? Some books, article`s?
I am from Europe and I from mountain apologize for my English.
Paula