Centre for Violence Prevention

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Evidence-Based Interventions

 

Optimism in treatment programmes had its boom throughout the western world in the 1960s and '70s. Modern methods were to 'repair' perpetrators of violent crime so that these could successfully be reintroduced into society. These sentiments won perhaps extra ground in Sweden due to the heritage of Myrdal and the ideas of social engineering. This era of prison and forensic mental health care was therefore characterised by a strong belief in the significance of structural and social factors on criminality. The scientific grounds were non-empirical and primarily sociological, inspired by the leading ideologist of the time. The individual therapists were said to be driven by a strong feeling of solidarity with the person convicted. Prison and forensic mental health treatment programmes were often created and operated by 'devotees', and involvement and a passion for justice in themselves were generally considered instrumental.

The 1980s saw a decline in willingness and an economic recession that, in North America above all, lead to a marked backlash. The heterogenic treatment models and programme activities that had sprouted in the preceding years were evaluated. These investigations all pointed with a disquieting consistency in the same direction: The treatment methods had at best no effect whatsoever, at any case not on the frequency of a return to crime. Many studies even indicated that the forms of therapy that were used, environmental therapy and forms of group psychotherapy (which would nowadays be considered rather experimental by those in the profession), increased the likelihood of reoffence. No treatment programmes were found anywhere that could be shown to have positive results. One expression that was coined during this era was 'Nothing Works!'.

Unsurprisingly, these findings were crushing for those involved in the prison service, forensic mental health services and other organisations working with violent offenders. These discoveries came in the 1980s at the same time as a dramatic shift in the social climate, in which general opinion was now for 'tougher measures' and a return to a more classic view of criminal law, which is reflected in legislation and other areas. At the same time, the 'Nothing Works' era provided space for a whole new generation of practitioners and researchers who wished to tackle the problem with a more pragmatic and empirical approach.

Recent years, in both prison and forensic mental health care, have been witness to a new direction that runs parallel to the evidence-based medicine that is now established within healthcare. In several areas of the world during the 1990s, new treatment programmes were implemented in which a follow-up using empirical evaluations was an integral part. This development was most pronounced in Canada.

The expression 'What Works!' came about in Canada as a reaction to Nothing Works! but also a descriptive doctrine for the era that we in Europe and North America are still clearly in to this day. Programmes must work and lead to measurable decreases in the likelihood of reoffending among the groups receiving treatment. If not, they should be wound up.

The ambitions of the What Works! spirit are strong within the Swedish prison and probation service. Several structured programmes that fulfil the general criteria for integrity and documentation have been developed during the 1990s, partly in collaboration with the CVP research group. Particularly worthy of mention are the programmes aimed at sexual offenders and perpetrators of violence in close relationships (domestic violence). However, to take the next step, persons with scientific expertise must evaluate these programmes. This should be done checking carefully for relevant confounders and using a randomised controlled trial format.

The subject of this study group is thus interventions aimed at reducing or managing the risks of violence. This includes programmes within the prison and probation service, as described above, and work within child psychiatry, schools and the social services. The aim is to be able to describe which interventions work and why.

Scientific Theme Coordinator: Niklas Långström.


Martin Lardén

Martin Lardén

Centre for Violence Prevention, Karolinska Institute, Box 23000, 104 35 Stockholm
Phone: +46 8 517 705 60, Email: info[at]cvp.se