A review of the polygraph: History, methodology and current status

John Synnott, David Dietzel, Maria Ioannou

Research output: Contribution to journalArticlepeer-review

48 Citations (Scopus)


The history of research into psychophysiological measurements as an aid to detecting lying, widely known as the ‘lie detector’ or polygraph, is the focus of this review. The physiological measurements used are detailed and the debates that exist in regards to its role in the investigative process are introduced. Attention is given to the main polygraph testing methods, namely the Comparative Question Test and the Concealed Information Test. Discussion of these two central methods, their uses and problems forms the basis of the review. Recommendations for future research are made specifically in regards to improving current polygraph technology and exploring the role of the polygraph in combination with other deception detection techniques.
Original languageEnglish
Pages (from-to)59-83
Number of pages25
JournalCrime Psychology Review
Issue number1
Early online date8 Jul 2015
Publication statusPublished - 8 Jul 2015


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