The article proposes a model to evaluate the effectiveness of NGOs that engage in advocacy for compliance with international human rights and civil liberties standards or constitutional rules. The model draws on the analysis of social movement effectiveness, ombudsmen’s roles and the literature on the evaluation of human rights NGOs at the international level. It establishes ways to measure the legitimacy and effectiveness of advocacy NGOs. In particular, it suggests that transparency and independence must be constantly demonstrated, that factual accuracy must always be sought and that legal compliance must be shown to have moral and public interest resonance. The article also discusses the choices between short term and long term strategies
