During recent decades, there has been a substantial increase in admissions to forensic mental hospitals in several European countries. It is not known if reforms implemented in mental health policies and practices are responsible for this development.

Our study examined the development of mental health care in Austria and the incidence and prevalence of mentally disordered offenders judged not guilty by reason of insanity (NGRI).

We analysed data on service provision and data from criminal statistics between 1970 and 2008 from several national sources.

During the first decade when reforms to mental health practice were implemented, the incidence and prevalence of offenders judged NGRI remained unchanged, despite a reduction of mental hospital beds by nearly 50% and little outpatient care. Surprisingly, the enormous increase in admissions to forensic inpatient treatment began in Austria only after community mental health services were rolled out across the country in the 1990s. This increase was primarily due to admissions of patients who had committed less severe offences, while rates of those who had committed homicide remained unchanged.

Our results cannot be explained by details of the reforms such as the downsizing of mental hospitals or a lack of outpatient facilities, nor by changes to criminal sentencing. Rather, the results provide evidence of an increasingly inadequate provision of comprehensive care for “difficult” but not extremely dangerous psychotic patients living in the community. This may result from the attitudes of mental health professionals who have become less inclined to integrate aggressive behaviour into their understanding of psychosis. As a consequence, increasing numbers of “difficult” patients end up in forensic psychiatric institutions. This development, which can be observed in nearly all European countries, raises concerns with regard to efforts to destigmatize both patients and psychiatry.

Antisocial behaviour is common among patients with severe mental illness (SMI) requiring hospitalisation.

To determine whether differential treatments and services are provided to patients with SMI who engage in antisocial behaviour.

A random sample of 161 inpatients with SMI were recruited from general adult wards and assessed at baseline and two years later. Information on symptoms, aggressive behaviour, substance misuse, and service use was obtained from patients and clinical files.

Past antisocial behaviours were not associated with type or intensity of treatments and services. Severity of positive symptoms, aggressive behaviour, and illicit drug use were positively associated with the frequency of CMHT contact, but not with the type of CMHT, type of medication, or other treatments and benefits.

While the frequency of meetings with CMHTs increased with the severity of antisocial behaviours, no specific treatments were provided to patients with SMI engaging in antisocial behaviours.

To illustrate the development of the interface between general and forensic mental health services in Victoria, Australia.

Developing effective cooperation between the general and forensic mental health services requires overcoming a number of barriers. The attitude of general services that antisocial behaviour was none of their business was tackled through ongoing workshops and education days over several years. The resistance to providing care to those disabled by severe personality disorders or substance abuse was reduced by presenting and promoting models of care developed in forensic community and inpatient services which prioritised these areas. The reluctance of general services to accept offenders was reduced by involving general services in court liaison clinics and in prisoner release plans. Cooperation was enhanced by the provision of risk assessments, the sharing of responsibility for troublesome patients, and a problem behaviours clinic to support general services in coping with stalkers, sex offenders and threateners.

Active engagement with general services was promoted at the level of providing education, specialised assessments and a referral source for difficult patients. This generated a positive interface between forensic and general mental health services, which improved the quality of care delivered to mentally abnormal offenders.

Over the past 40 years, a marked deinstitutionalisation in favour of social and community psychiatry has taken place in many countries. During this same period of time, there has been an increase in the number of mentally ill criminals. The purpose of this study is to analyse the correlations between the reorganization of the psychiatric treatment system, the growing number of forensic patients and the increase in serious crime, homicide, arson and violence associated with the mentally ill.

Using registers and other data sources, we estimated the annual positive or negative growth rate of consumed psychiatric beds and in social and community psychiatry (explanatory variables) and in prevalence and incidence of forensic patients, homicide, arson and violence (response variables) from 1980 to 1997 for each of the Danish counties. We analysed the immediate effect of the changing treatment structure by relating response variables to explanatory variables. The long-term effect was analysed in the form of between county analysis with both single and multiple regressions.

Bed closure had no immediate effect on either the number of forensic patients or serious criminality. The between county analysis shows, however, that over time the (negative) growth rate in number of consumed beds is significantly correlated with the (positive) growth rates for forensic patients, homicide and arson. Social and community psychiatry have little effect, if any.

The study is based on historical data, but the results are still valid. We have used two sets of data firstly the number of forensic patients and, secondly the reported number of crimes associated with the mentally ill. The uniformity of the results leads us to consider them for certain: That the decreasing effort invested in inpatient treatment is causing an increase in the crime rate among the mentally ill.

Many forensic patients suffer from schizophrenia. These patients are not only offenders, but also the victims of an inadequate treatment system. Modern inpatient treatment facilities should be established.