SADC Polic y for Strategy Development, Planning, M onitoring and Evaluation they should not in person have been engaged in the activities to be evaluated or been responsible in the past for the design, implementation, or supervision of the project, or policy to be evaluated. vi) Impartiality: Evaluations must give a comprehensive and balanced presentation of strengths and weaknesses of the policy, program, project, or organizational unit being evaluated. The evaluation process should reflect impartiality at all stages and take into account the views of all stakeholders. Units commissioning evaluations should endeavour to ensure that evaluators selected are impartial. vii) Competencies and Capacities: Depending on the subject, monitoring and evaluation activities require a range of expertise that may be technical, environmental, or within a social science or the evaluation profession. Units commissioning evaluations are responsible for selecting independent-minded, experienced, and sufficiently senior evaluators, and adopting a rigorous methodology for the assessment of results and performance. Evaluations of SADC activities shall make the best possible use of regional expertise, both technical and evaluative. The SADC partners, as feasible, cooperate to stimulate evaluation capacity development at the regional level. 10