This report was developed by the partnership of R2PRIS Radicalisation Prevention in Prisons (2015-1-PT01-KA204-013062) project with the aim of presenting its first deliverable: the R2PRIS Methodological Framework. Led by West University of Timisoara, the output was achieved through four tasks, namely (i) a state of the art analysis on violent extremism and radicalisation within prisons, (ii) a collection of approaches, lessons learned and practices on tackling the phenomena, (iii) the development of a methodological framework for analysing deradicalisation strategies within prison and (iv) the establishment of a panel of experts in the field. Developed in part I of this report, the state of the art analysis brings forward the concepts associated with the phenomena of radicalisation and violent extremism, the main general explanatory frameworks concerning the phases, pathways and levels of radicalisation, and also the main issues regarding prisoner radicalisation. The main indicators on how to identify vulnerable individuals at risk of radicalisation are also presented in this section. Part II of the report provides an overview of the approaches and practices in the field of deradicalisation employed by the prison services in four of the participant countries in the project: Belgium, Norway, Romania, and Turkey. For this purpose, a data collection tool in the form of a survey was developed and deployed. Based on the desk research findings and on the collected approaches and practices, the partnership developed a methodological framework for analysing deradicalisation strategies in the prison environment, which is showcased in part III.