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Using lie detector test to win an argument is an Auto-BOBO

Using lie detector test to win an argument is an Auto-BOBO

Polygraph or Lie Detector Test is not a test, it’s an intense interrogation, and the only part that polygraph plays is to frighten or intimidate a person into making a confession or an admission.

It doesn’t record truth or deception, there is no such thing as “lying reaction” it records nervousness.

The reaction that would brand a person as a liar only indicates deception about fifty percent (50%) of the time. 

What the polygraph records are your blood pressure, pulse rate and it also shows the galvanic skin response that’s where the electrodes are placed on the first and third fingers of your right hand and it records the sweat activity.

The McGrath tubes placed around the chest and stomach record the breathing activity.

In the process, any number of innocent stimuli can and do cause the exact same reaction that would brand a person as a liar.

For you to beat the polygraph exam or lie detector test you have to understand how the machine is scored.

There are two different types of questions: 1) Relevant Question and 2) Control Question.

The relevant questions are obviously those that pertain to the pointed issue such as asking your name or your job.

Control questions are interspersed or intermix such as asking ‘Have you ever stolen anything?’

The one who takes the polygraph test must show a reaction on the control questions because what the examiners do is they compare the reactions.

In the Philippines, netizens are more confident to brand lie detector tests as proof to win an argument or dispute like in Raffy Tulfo Action, a segment in TV5.

Atty. Ranny Randolf B. Libayan of Libayan & Associates-BATASnatin The Firm discussed the inadmissibility of lie detector test in Philippine Law and why Raffy Tulfo commenters are fond to brand polygraph test as evidence.

Atty. Libayan said, “Sa comment section dapat wag tayong auto-bobo. Isa sa mga auto-bobo na comment ay kapag meron tayong nakita na nag-sasabi ng mga declaration or salaysay nila, eh mag-cocoment tayo na ela-lie detector test yan.”

Atty Libayan also provides legal basis of its inadmissibility as evidence in the case of People vs Adoviso, G.R. No. 116196 June 23, 1999.

In the said case, the Supreme Court said that polygraph is an electromechanical instrument that simultaneously measures and records certain physiological changes in the human body that are believed to be involuntarily caused by an examinee’s conscious attempt to deceive the questioner.

The theory behind a polygraph or lie detector test is that a person who lies deliberately will have rising blood pressure and a subconscious block in breathing, which will be recorded on the graph.

However, American courts almost uniformly reject the results of polygraphs tests when offered in evidence to establish the guilt or innocence of one accused of a crime, whether the accused or the prosecution seeks its introduction, for the reason that polygraph has NOT as yet attained scientific acceptance as a reliable and ascertaining truth or deception.

“Ang polygraph test ay hindi admissible sa korte at kahit mag-polygraph test ka, walang silbi ito at hindi ito paniniwalaan. Kung hindi ito pinapaniwalaan ng korte, dapat hindi nyo rin paniwalaan,” Atty Libayan added.