The Department of Justice came into existence in April 2010. Its role is to support the Minister of Justice to help keep the people of Northern Ireland safe. It has a range of devolved policing and justice functions. It provides resources and a legislative framework for a number of "arms length bodies" including the Police Ombudsman's Office.
The role of the Northern Ireland Office is to support the Secretary of State for Northern Ireland in securing a lasting peace, based on the Good Friday Agreement, in which the rights and identities of all traditions in Northern Ireland are fully respected and safeguarded and in which a safe, stable, just, open and tolerant society can thrive and prosper.