A polygraph test can be passed by manipulating the body's response to control questions. A participant's lies are only considered lies when they register a higher response than control questions. The results can therefor... More »

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Options for inexpensive polygraph tests include using online tests, buying polygraph software, buying a polygraph machine, opting for a voice test and negotiating with professional polygraph administrators, according to ... More »

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A person can beat a polygraph test by triggering strong reactions during the test questions and remaining calm as the pertinent questions come up, according to Elizabeth Flock for U.S. News & World Report. Causing pain t... More »

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According to a National Security Agency (NSA) whistle-blower, Russell Tice, it is possible to beat a polygraph by skewing the initial data and forcing strong reactions in response to known lies. He also suggests daydream... More »

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Most home formaldehyde test kits include a badge or pump for collecting an air sample that is returned to an accredited laboratory for testing. Formaldehyde is of special concern in new or remodeled homes. More »

www.reference.com Science Forensic Science

A buccal swab test is a method of collecting DNA samples. According to the Laboratory Corporation of America, DNA samples are collected by rubbing the inside of the mouth with cotton-tipped swab. Unlike obtaining DNA fro... More »

www.reference.com Science Forensic Science

The purpose of embalming is to preserve the tissues in the body and delay decomposition. Many people choose embalming because it helps the body look more life-like for public viewing purposes at a funeral or memorial ser... More »