CAT/OP/1/Rev.1 policies made by authorities, general attitudes, and conditions and practices in places of detention. 18. The national preventive mechanism should develop concrete long- and short-term strategies in order to achieve the maximum impact on problems and challenges relevant to its mandate in the local context. Activities and their outcomes should be monitored and assessed on an ongoing basis and the lessons learned should be used to develop the practices of the mechanism. Such an assessment could be based on a framework, starting with existing challenges, such as resourcing issues, and an assessment of activities currently being undertaken, moving through a range of additional factors and activities, such as: (a) Criteria for the selection of planned activities; (b) Criteria for the composition of working groups and visiting and outreach teams, among others, including the involvement of specific forms of professional expertise or other input from national/international stakeholders; (c) identified; Analysis of problems and challenges, and of good practices that have been (d) Cooperation with other actors; (e) Resources budgeted; (f) Strategies and working methods to be adopted when implementing activities; (g) Recommendations submitted to authorities; (h) Follow-up action and an assessment recommendations, including dialogue with authorities; of the implementation of (i) Systematization of observations, recommendations issued and the responses received from authorities, including information on implementation, as well as analysis of how and why successes and failures in effective change have occurred; (j) A description of all other national preventive mechanism activities in addition to visiting, output and impact assessments; (k) Resources spent; (l) Consideration of the need to develop alternative strategies or approaches. 19. Working strategies are subject to periodic evaluation and improvement. A national preventive mechanism might wish to include its partners in reviewing and taking stock of its activities. It may also wish to seek input from international stakeholders, such as the Subcommittee. 20. The work of the mechanism should be understood as an ongoing, context-based process of development that takes into account not only the experience of the mechanism itself but also information and advice from and the experience of other relevant and reliable sources. Members, staff, external experts and other potential contributors should receive ongoing training on mechanism activities and torture prevention, including on methodological, strategic and ethical issues, and should participate in the development of working methods. The involvement of the Subcommittee in such capacity-building activities could be beneficial. 6