• Circles of Support & Accountability

    About Cosa

    Circles of Support & Accountability

    COSA is a unique and innovative community justice initiative for postrelease support and monitoring of medium- and high-risk sex offenders in and by the community.

  • Welcome to CirclesEurope!

    Circles Europe

    Welcome to CirclesEurope!
    To support CoSA projects throughout Europe and to provide a platform for exchange of knowledge and good practices in Europe and beyond, a European Association for providers of Circles of Support and Accountability and their supporters has been set up.  Click on the link to read the full article about CirclesEurope!
  • Starting implementation

    Cosa process

    Starting implementation

    COSA is not a simple method or a protocol, that can be copied and pasted into any given national context. COSA is based on community involvement and involvement of a local network of professional organisations.

  • European Cooperation


    European Cooperation

    CirclesEurope aims to encourage and to facilitate the development across Europe of Circles of Support and Accountability as a humane, just, effective and indispensable means of reducing sexual reoffending.

  • CirclesEurope

    Cosa partners


    CirclesEurope Association is the result of Circles4EU, a project funded by the EU. The consortium of the Cirlces4EU project consisted of 20 organisations, ranging from Ministries of Justices and Probation Services to Universities, NGOs and Foundations. Together they represent 10 European countries.

 Community justice initiative

Circles Of Support & Accountability (COSA, or Circles)
is a unique community justice initiative for support and monitoring of medium- and high-risk sex offenders in and by the community.

In COSA, a sex offender (the core member) after release is supported  by three to six volunteers (the inner circle) from the local community. The inner circle assists the core member in his proces of resettling in the community by providing moral support and practical help, and by encouraging pro-social behavior. Volunteers are also trained to recognize behaviour that raises concerns.

If necessary, their circle coordinator wil alert members of the so called outer circle that consists of professionals, such as probation officer, therapist or police officer, who can take whatever steps necessary to prevent further offending. 


Good results

Evaluations show that the recidivism rate of Circles participants is considerably less than when compared to those who have not received a circle.

European COSA projects

In 2002, COSA was first introduced in Europe, in the United Kingdom. Since then, COSA has been further implemented in the Netherlands, Belgium, Catalonia, Latvia, Bulgaria, Ireland and Italy.

CirclesEurope Association

In 2018, the CirclesEurope Association was founded. The objective of the association is the support, development and promotion of Circles of Support and Accountability services across Europe according to the commonly agreed Circles model and with the intention of assisting similar developments elsewhere.