nounmasculinepl: polygraphs
polígrafo
1. An instrument that simultaneously records changes in physiological characteristics (such as heart rate, blood pressure, respiration, and skin conductivity) in response to questions, commonly used in lie detection tests
The suspect was asked to take a polygraph test to determine if he was telling the truth.
O suspeito foi solicitado a fazer um teste de polígrafo para determinar se estava falando a verdade.
2. A person who writes or is skilled in writing in many languages or on many subjects
The polygraph was known for his contributions to multiple scientific fields.
O polígrafo era conhecido por suas contribuições em múltiplos campos científicos.
3. A literary work written by multiple authors or covering diverse subjects
The polygraph collection contained essays from various scholars.
A coletânea polígrafa continha ensaios de vários estudiosos.
In the United States, polygraph tests are commonly used by law enforcement agencies, the FBI, CIA, and private security firms, though their scientific validity remains controversial. In Brazil and Portugal, polygraph tests are less frequently used in standard criminal procedures but are sometimes employed in specific legal cases. The reliability of polygraphs is debated in both countries' legal systems.
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