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Göteborgs universitets publikationer

How to detect deception? Arresting the beliefs of poilce officers, prosecutors and judges

Författare och institution:
Leif Strömwall (Psykologiska institutionen); Pär-Anders Granhag (Psykologiska institutionen)
Publicerad i:
Psychology, Crime and Law, 9 s. 19-36
Artikel, refereegranskad vetenskaplig
Sammanfattning (abstract):
In this paper we examined beliefs about deception held by legal professionals. Three groups of presumed expert liecatchers were investigated: police officers (n¼104), prosecutors (n¼158), and judges (n¼251). The experts’ beliefs about deception were remarkably inconsistent with the general pattern resulting from studies mapping actual cues to deception. For example, a majority of police officers believed there is a strong relationship between (a) deceptive behaviour and gaze aversion and (b) deceptive behaviour and an increase in body movements. The scientific literature does not support this view. Furthermore, all three professional groups believed that truthful consecutive statements are more consistent than deceptive, and that it is easier to detect deception in interactive than non-interactive contexts. Research on deception shows the opposite. For five of the seven investigated items we found significant between-group differences. Both the genesis and the implications of these differences are discussed. Judging from self-ratings, the presumed experts admitted knowing close to nothing about scientific research on deception.
Ämne (baseras på Högskoleverkets indelning av forskningsämnen):
Psykologi ->
Tillämpad psykologi
Beliefs about deception; Experts’ opinions; Deception detection
Postens nummer:
Posten skapad:
2014-03-04 13:47

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