Health professionals have been active in the work of Amnesty international since its inception, and have played an increasingly valuable role in documenting human rights abuses, arranging treatment, for victims, and campaigning for the observance and strengthening of human rights and ethical standards. In this newly revised and expanded [fifth] edition, Codes of Ethics illustrates the critical milestones and technical instruments developed during recent years. It presents an invaluable reference tool for all professionals engaged in medical ethics to inform effective human rights advocacy.