PRI occasionally attends the Council of Europe Working Group for Penological Cooperation (PC-CP), which reports to the European Committee on Crime Problems and to Ministers of Justice from the 47 member states. It drafts the Council of Europe recommendations, for example on prison and probation issues.
In February 2014, for example, the Council of Europe adopted 40 rules of recommended practice in electronic monitoring, which will hopefully provide useful guideline for its future development in its 47 member states, and possibly outside Europe as well.
For an overview of the Recommendation, see this blog for PRI by Mike Nellis and Dominik Lehner, international experts who worked with the PC-CP on the recommendation.