A retrospective study of 470 patients remanded for fitness-to-stand-trial evaluations was conducted, examining diagnostic judgments, MMPI data, and criminal and sociodemographic variables. Fitness opinions rendered to the court by a pool of 10 staff psychiatrists constituted the dependent variable under investigation. Results of univariate analyses demonstrated differences between fit and unfit subjects on the basis of race, age, primary diagnosis, and history of substance abuse. Findings from stepwise discriminant analyses revealed that sociodemographic characteristics (i.e., race, age, and sex) could predict fitness with 71% accuracy. These results are discussed with respect to the current assessment practices and the potential bias in clinical judgments of fitness to stand trial.Assessments of fitness to stand trial represent a high proportion of pre-trial evaluations (Kunjukrishnan & Bradford, 1985) with a conservative estimate of 5000 competency evaluations conducted each year in Canada (Webster, Menzies, & Jackson, 1982). Despite the frequency of these evaluations and their importance to the accused, clinicians are offered little statutory guidance on the meaning of fitness to stand trial. The standard, an exercise in definitional ambiguity, states that unfitness occurs when there is "sufficient reason to doubt that the accused is, on account of insanity, capable of conducting his defense" (Criminal Code,
S.543[l]).Mr. Gilbert Sharpe, chairman of the Mental Disorder Project, Federal Department of Justice, proposed explicit criteria for legislative change in the fitness standard. These changes were incorporated into proposed amendments to the Canadian Criminal Code (Minister of Justice, 1986) defining fitness as the "inability of the accused to (a) understand the nature or object of the proceedings, (b) understand the possible consequences of the proceedings, or (c) communicate with counsel" (p. 1). These amendments to the Criminal Code, if accepted, might improve the reliability and validity of fitness decisions. Until such amendments are passed, however, clinicians will have to rely on their own personal, non-legal understanding of what constitutes fitness to stand trial.A review of the research on fitness to stand trial has demonstrated that the clinical application of the fitness standard has many unexpected correlates. While several studies have examined the relationship of either sociodemographic, clinical, or psychometric variables to the judgment of fitness to stand trial, none have looked at a combination of these variables. Menzies, Jackson, and Glasberg (1982), in an