anticipatory or early warning role of scanning and assessing the total (economic, social, political and environmental) domestic security situation to identify and report to the policy maker or executive departments any signs or warning signals of threats or potential threats to the constitutional order and the safety of the people To perform a reactive monitoring role of tracking events when a threat/crime has been identified or a crisis has already arisen, without duplication of the role of the other executive departments. The purpose of this monitoring role is mainly to enhance investigation and prosecution by providing tactical information and intelligence to enforcement and prosecution institutions and to decide the extent and the implications of threats or potential threats to the national security of the Republic and the safety of the people To provide an integrated multi-analytical strategic projective assessment of patterns, trends and of security relevant issues, to provide strategic early warning and to enhance NIA's support/involvement in policy formulation. Director-Generals/Directors The following people have held the position of Director-General or Director since the restructure of the South African intelligence services in 1994: 1995–1999: Sizakele Sigxashe 1999–2004: Vusi Mavimbela 2004–2005: Billy Masetlha 2005–2009: Manala Manzini 2009–2011: Lizo Gibson Njenje 2011–2013: ????? 2013–2014: Simon Ntombela 2015–2017: Bheki WJ Langa 2017-2019: Bob Mhlanga 2019-2021: Mahlodi Sam Muofhe Organisational structure The Domestic Branch's organisational structure is largely unknown but sources have mentioned the following departments or sections: Counter-intelligence Domestic collection Security In 1999, the agency employed about 1,500 persons. Past names Although commonly referred to as the NIA, the organization has undergone a name change: 1 January 1995: National Intelligence Service 2 October 2005: Domestic Branch - State Security Agency History The history of the NIA has been recorded by the South African media, mostly in the cases were operations have gone wrong or have been leaked, but with all intelligence organisations, their successes remain mostly as state secrets: Sizakele Sigxashe Sizakele Sigxashe was appointed the first director-general of the NIA on 1 January 1995. Prior to his appointment, Sigxashe was a member of the ANCs intelligence wings and was involved of the restructure of its Department of National Intelligence and Security (NAT) as a new organization called the Department of Intelligence and Security (DIS) in 1987. His task was to unify a new organization made up of members of many of the pre-1994 intelligence agencies each with its own culture and work