The forensic use of behavioral genetics in criminal proceedings: Case of the MAOA-L genotype.

Détails

ID Serval
serval:BIB_03C5427EFBEA
Type
Article: article d'un périodique ou d'un magazine.
Sous-type
Etude de cas (case report): rapporte une observation et la commente brièvement.
Collection
Publications
Institution
Titre
The forensic use of behavioral genetics in criminal proceedings: Case of the MAOA-L genotype.
Périodique
International journal of law and psychiatry
Auteur(s)
McSwiggan S., Elger B., Appelbaum P.S.
ISSN
1873-6386 (Electronic)
ISSN-L
0160-2527
Statut éditorial
Publié
Date de publication
2017
Peer-reviewed
Oui
Volume
50
Pages
17-23
Langue
anglais
Notes
Publication types: Journal Article
Publication Status: ppublish
Résumé
The role of behavioral genetic evidence in excusing and mitigating criminal behavior is unclear. Research has suggested that a low activity genotype of the enzyme monoamine oxidase (MAOA-L) may increase the risk for aggressive and antisocial behavior. By examining criminal proceedings in which MAOA-L genotype evidence was introduced, we explored the forensic uses of behavioral genetic science. Westlaw and LexisNexis legal databases were electronically searched for cases from 1995 to 2016 to identify court documents from cases involving the MAOA-L genotype. Evidence of the MAOA-L genotype was included in records from 11 criminal cases (9 U.S. and 2 Italian). In the guilt phase, genotype evidence was ruled admissible in one of two cases, and may have contributed to a conviction on a lesser charge. In the sentencing phase, genotype evidence was admissible in four of five cases, one of which ended with a lesser sentence. Five cases used genotype evidence for post-conviction appeals, two of which resulted in sentence reductions. Even when charges or sentences are reduced it is difficult to gauge the effect of evidence of the MAOA-L genotype. Genotype evidence may lack persuasive effect because the impact of the allele on a particular accused is difficult to establish.

Pubmed
Web of science
Création de la notice
15/11/2016 10:35
Dernière modification de la notice
20/08/2019 13:25
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