A survey of 1,649 shoplifting convictions at a Montreal area municipal court found that a relatively low percentage (3.2%) of the cases involved mentally ill patients and that there is a comparatively closer link between shoplifting and affective disorders, alcoholism and drug addiction. The survey also showed that shoplifting is related more to mental illness than to the use of psychotropic drugs. The authors therefore reject the hypothesis of pharmacogenic shoplifting which has been reported in some studies on small numbers of shoplifters.