The constituents of the National Security Committee deliberate on the Republic of Ireland's International Terror Threat Level. Five levels are used to grade the international threat of a terrorist attack to Ireland; low, moderate, substantial, severe and critical. The gradings are based on a series of factors, including information supplied by international authorities. The threat level is administered by the Garda Síochána. International Terror Threat Level:
The National Civil Aviation Security Committee is a standing committee established in 1974. The purpose of the NCASC is to advise the Irish government and civil aviation industry of security policy for civil aviation, to recommend and review security measures at airports and to co-ordinate the various interests involved. The National Civil Aviation Security Committee meets at a minimum biannually. The NCASC comprises senior representatives of government departments, Irish airports, Irish airlines, the Garda Síochána, the Defence Forces, An Post, Customs & Excise, the Irish Aviation Authority, and the Irish Airline Pilots Association. The committee was established under the National Civil Aviation Security Programme which is classified on security grounds, and therefore the deliberations of the committee are confidential.
Continuity of government
The National Security Committee is the conduit for officials to communicate with the Taoiseach and/or cabinet members if their minister – the normal channel – became unavailable. In preparation for such extreme events drafts of emergency powers legislation have been drawn up in secret by officials from the Department of Justice, including legislation to deal with circumstances such as an attack on cabinet involving numerous deaths.
Government Security Committee
In July 2017, a new Government Security Committee designated Cabinet Committee F was established. Chaired by Taoiseach Leo Varadkar, the new committee is modelled on the British government COBRA crisis management committee with the aim of bringing together more senior cabinet-level ministers on matters of state security. Its inaugural meeting was attended by the Tánaiste; Minister of State at the Department of Defence; Ministers and senior officials from the Departments of Justice & Equality; Defence; Enterprise & Innovation; Finance and Public Expenditure & Reform; Foreign Affairs & Trade; Health; Housing, Planning & Local Government; Communications, Climate Action & Environment; and Transport, Tourism & Sport, where senior Defence Forces and Garda officers briefed them on the international terrorism threat.