polygraph

polygraph
Also known as a lie detector, it is an electro-mechanical instrument used to determine whether an examinee is truthfully answering questions. It simultaneously measures and records certain physiological changes in the human body which it is believed are involuntarily caused by an examinee's conscious attempt to deceive an interrogator. U.S. v. DeBetham, D.C.Cal., 348 F.Supp. 1377, 1384.
Though historically inadmissible on grounds of unreliability, polygraph evidence is increasingly being admitted if, for example, the parties stipulate in advance to its admission or it is being offered to impeach or corroborate witness testimony. U.S. v. Piccinonna, C.A.Fla., 885 F.2d 1529.
With certain exceptions, employers engaged in commerce are statutorily prohibited from requiring employees or prospective employees to submit to a polygraph test. Employee Polygraph Protection Act of 1988, 29 U.S.C.A. No. 2001 et seq.
See also lie detector.

Black's law dictionary. . 1990.

Игры ⚽ Поможем написать реферат

Look at other dictionaries:

  • polygraph — poly·graph / pä lē ˌgraf/ n: an instrument that records physiological pulsations; esp: lie detector poly·graph·ic /ˌpä lē gra fik/ adj Merriam Webster’s Dictionary of Law. Merriam Webster. 1996 …   Law dictionary

  • Polygraph — Pol y*graph, n. [Gr. ? writing much; poly s much, many + ? to write: cf. F. polygraphe.] 1. An instrument for multiplying copies of a writing; a manifold writer; a copying machine. [1913 Webster] 2. In bibliography, a collection of different… …   The Collaborative International Dictionary of English

  • Polygraph — (v. gr.), 1) Vielschreiber, Verfasser zahlreicher Werke, gewöhnlich in tadelndem Sinne; 2) s. u. Kopirmaschine 1) b) Daher Polygraphie, 1) Vielschreiberei; 2) Schrift, deren sich nicht blos eine bestimmte Sprache, sondern auch viele andere… …   Pierer's Universal-Lexikon

  • Polygraph — (griech.), Vielschreiber; auch eineeigenartig konstruierte Kopiermaschine …   Meyers Großes Konversations-Lexikon

  • Polygraph — Polygrāph (grch.), Vielschreiber; Kopiermaschine …   Kleines Konversations-Lexikon

  • Polygraph — Polygraph, ein Vielschreiber, und in diesem Sinne oft tadelnd gebraucht, im Allgemeinen aber, jeder Autor, der Viel über Vieles schreibt …   Damen Conversations Lexikon

  • polygraph — (n.) 1794, mechanical device for making multiple copies of something written or drawn, from Gk. polygraphos writing much, from polys much (see POLY (Cf. poly )) + graphos writing, from graphein to write (see GRAPHY (Cf. graphy)). Meaning instru …   Etymology dictionary

  • polygraph — ► NOUN ▪ a machine for recording changes in a person s physiological characteristics, such as pulse and breathing rates, used especially as a lie detector …   English terms dictionary

  • polygraph — [päl′i graf΄] n. [Gr polygraphos, writing much: see POLY & GRAPH] 1. an early device for reproducing writings or drawings 2. an instrument for recording simultaneously changes in blood pressure, respiration, pulse rate, etc.: see LIE DETECTOR… …   English World dictionary

  • Polygraph — This article is about the forensic instrument. For the automatic signing instrument, see Autopen. For the dual pen device that produces a simultaneous copy of an original while it is written in cursive writing, see Polygraph (duplicating device) …   Wikipedia

  • Polygraph — Ein Polygraph ist: ein Lügendetektor Polygraf, ein Beruf im Druckwesen Polygraph (Zeichnen), ein Zeichenhilfmittel Jefferson Polygraph, ein Vorläufer des Kopiergeräts das Kombinat Polygraph Werner Lamberz, ein ehemaliges Industriekombinat in… …   Deutsch Wikipedia

Share the article and excerpts

Direct link
… Do a right-click on the link above
and select “Copy Link”