Description at UN OHCHR website: http://www.ohchr.org/EN/AboutUs/Pages/WhoWeAre.aspx:
"The Office of the United Nations High Commissioner for Human Rights (OHCHR) represents the world's commitment to universal ideals of human dignity. We have a unique mandate from the international community to promote and protect all human rights.
The High Commissioner for Human Rights is the principal human rights official of the United Nations.
The High Commissioner heads OHCHR and spearheads the United Nations' human rights efforts. We offer leadership, work objectively, educate and take action to empower individuals and assist States in upholding human rights.
We are a part of the United Nations Secretariat with our headquarters in Geneva.
The Office's priorities, expected accomplishments and strategies are set out in the OHCHR Management Plan 2014-2017.
OHCHR’s thematic priorities are strengthening international human rights mechanisms; enhancing equality and countering discrimination; combating impunity and strengthening accountability and the rule of law; integrating human rights in development and in the economic sphere; widening the democratic space; and early warning and protection of human rights in situations of conflict, violence and insecurity.
United Nations human rights system
We also support the work of the United Nations human rights mechanisms, including the treaty bodies established to monitor State Parties' compliance with the core international human rights treaties and the Special Procedures of the Human Rights Council. We, promote the right to development, coordinate United Nations human rights education and public information activities, and strengthen human rights across the United Nations system. We work to ensure the enforcement of universally recognized human rights norms, including through promoting both the universal ratification and implementation of the major human rights treaties and respect for the rule of law."