Criminal Behaviour and the XYY Male

@article{Price1967CriminalBA,
  title={Criminal Behaviour and the XYY Male},
  author={William H. Price and P. B. Whatmore},
  journal={Nature},
  year={1967},
  volume={213},
  pages={815-815}
}
IN 1965, Jacobs et al. published their preliminary findings of a chromosome survey conducted at a maximum security hospital, The State Hospital, Lanarkshire, Scotland1. The most remarkable finding in the completed survey was the discovery among 315 men of nine patients with an XYY sex chromosome constitution. Their behaviour, together with their pattern of crime, has now been closely studied. The full clinical details of this investigation will be published elsewhere by us, and this… 
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It is concluded that for children, there are no proven phenotypic expressions associated with the XYY sex chromosome complement and it is recommended that for the time being, parents and patients not be informed of this finding.
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The 47,XYY male: a review.
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References

Aggressive Behaviour, Mental Sub-normality and the XYY Male
TLDR
The purpose of this communication is to report the findings in a survey of mentally sub-normal male patients with dangerous, violent or criminal propensities in an institution where they are treated under conditions of special security.