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Objectives: The study aimed to estimate the prevalence of homelessness among mentally disordered offenders entering the criminal justice and forensic mental health systems, to compare base rates of arrest for violent and nonviolent criminal charges among homeless and domiciled persons with mental illness, and to examine patterns in the categories of victims chosen by these two groups., Methods: The authors analyzed data from structured psychiatric interviews and criminal and psychiatric records of 77 homeless defendants and 107 domiciled defendants referred for psychiatric examination by the criminal and supreme courts in Manhattan over a six-month period., Results: Mentally disordered defendants had 40 times the rate of homelessness found in the general population, and 21 times the rate in the population of mentally ill persons in the city. The overall rate of criminal offenses was 35 times higher in the homeless mentally ill population than in the domiciled mentally ill population. The rate of violent crimes was 40 times higher and the rate of nonviolent crimes 27 times higher in the homeless population. Homeless defendants were significantly more likely to have been charged with victimizing strangers., Conclusions: Homeless mentally ill persons appear to be grossly overrepresented among mentally disordered defendants entering the criminal justice and forensic mental health systems and to have a higher base rate of arrest for both violent and nonviolent crimes than domiciled mentally ill persons.

This study examines relationships between homelessness and findings of incompetency to stand trial in a sample of mentally disordered offenders. All 263 defendants referred for competency evaluation over a six-month period by the Criminal and Supreme Courts in Manhattan were studied. Each defendant was evaluated by two forensic psychiatrists using a structured interview protocol. After removing "false-positive" referrals, 42 percent of the mentally disordered defendants referred to this setting were found to have been homeless at the time of their instant offense, making them more than 40 times more likely to be homeless than the general population and 21 times more likely to be homeless than the rest of the city's mentally ill population. Homeless mentally disordered defendants were significantly more likely to be found incompetent to stand trial than domiciled defendants (p < .007) but also presented with significantly higher levels of psychopathology. Examination of mental status findings revealed that homeless defendants were more likely to be psychotic, including a higher incidence of formal thought disorder and ideas of reference. The relationship between homelessness and incompetency seems to be mediated by psychotic symptoms, suggesting that these defendants are not being found incompetent because they are homeless, but that homeless defendants are more likely to be psychotic and to exhibit a greater degree of psychopathology. The clinical and public policy implications of these findings are discussed.

This descriptive research paper reports on 52 geriatric defendants accused of criminal offenses and referred for forensic psychiatric evaluation. It addresses demographic and clinical variables in that population. The authors hope that the data will assist in planning for forensic and therapeutic services for geriatric persons in the criminal justice system.

This study describes women accused of setting fires in the City of New York who were evaluated between 1980 and 1983 at the Forensic Psychiatry Clinic for the New York Criminal and Supreme Courts. Consideration is given to their age, ethnicity, history of prior mental illness, abuse of controlled substances, economic status, family background, education, and employment. Their methodology, planning, and targeting for their firesetting behavior, as well as reported motivations for engaging in arson, are also considered.