The UN was founded in 1945 after World War II to replace the League of Nations, to stop wars between countries, and to provide a platform for dialogue. It contains multiple subsidiary organizations to carry out its missions. It is an international organization that strives to facilitate cooperation in international law, international security, economic development, social progress, human rights, and achievement of world peace.
UN is not a law enforcement agency but it formulates and promolgates international standards and norms in criminal law and criminal justice that are adopted by many countries.
UN has a complex system. The Official Website locator for the United Nations system of organizations has an alphabetical listing of various organizations associated with the United Nations, their websites and further links to the specific organization’s publications.
United Nations Dag Hammarskjold Library has created a useful guide on researching UN Documenation.
The list of all International Courts and Tribunals and UN bodies pertaining to internationl law can be found here.
International Court of Justice (ICJ) - the principal judicial organ of the United Nations (UN). The ICJ settles disputes between the States (not individuals).
International Criminal Court (ICC) - governed by the Rome Statute, is the first permanent, treaty based, international criminal court established to help end impunity for the perpetrators of the most serious crimes of concern to the international community. The ICC is an independent international organization, and is not part of the United Nations system.The Court cooperates with the UN in many different areas, including the exchange of information and logistical support and provides an annual report to the UN.
UNICRI (United Nations Interregional Crime and Justice Research Institute) - assists intergovernmental, governmental and non-governmental organizations in formulating and implementing improved policies in the field of crime prevention and criminal justice.
UNODC (United Nations Office on Drugs and Crime) - - this site's map of serves as the major gateway to information and UN publications on international efforts to reduce money laundering and organized crime, terrorism and corruption, trafficking in illegal drugs and humans, spread of HIV and AIDS, and piracy.
UNICRI and UNODC are part of the United Nations Crime Prevention and Criminal Justice Programme Network (PNI). Other members of PNI are either UN affiliated or leading national criminal justice institutions from all over the world. The links to these institutions can be found on the PNI website.
International crime statistics (United Nations Surveys on Crime Trends and the Operations of Criminal Justice Systems, CTS) is available under Resources --> Data and Analysis link from the site's menu.
All UN statistics can be found through UNdata.