National Security Bureau is a Polish

Poland

Poland , officially the Republic of Poland , is a country in Central Europe bordered by Germany to the west; the Czech Republic and Slovakia to the south; Ukraine, Belarus and Lithuania to the east; and the Baltic Sea and Kaliningrad Oblast, a Russian exclave, to the north...

 government agency executing the tasks given by the President of the Republic of Poland

President of the Republic of Poland

The President of the Republic of Poland is the Polish head of state. His or her rights and obligations are determined in the Constitution of Poland....

 regarding national security. Bureau serves as the organizational support to the National Security Council.

The Chief of the National Security Bureau answers to the President. Shortly after the creation of NSB (1991) it was a part of Office of the President of the Republic of Poland

Office of the President of the Republic of Poland

The Chancellery of the President of the Republic of Poland , established in 1989, is an institution working for and under the Polish president. This is an equivalent of such institutions as the Executive Chancellery of the President of the United States, and consists of the immediate staff of the...

 in place of the Ministry of State for the National Security, which was succeeded by it.

Heads of the National Security Bureau

• Jerzy Milewski – from 8 February 1991 until 13 June 1994
• Henryk Goryszewski – from 14 June 1994 until 22 December 1995
• Jerzy Milewski – from 3 January 1996 until 10 February 1997
• Marek Siwiec
  Marek Siwiec
  Marek Maciej Siwiec is a Polish politician and since 2004 Member of the European Parliament for the Greater Poland Voivodship with the Democratic Left Alliance-Labor Union, part of the Socialist Group and sits on the European Parliament's Committee on Foreign Affairs. In the European elections of...
  
   – from 19 February 1997 until 17 June 2004
• Major General
  Major General
  Major general or major-general is a military rank used in many countries. It is derived from the older rank of sergeant major general. A major general is a high-ranking officer, normally subordinate to the rank of lieutenant general and senior to the ranks of brigadier and brigadier general...
  
   Tadeusz Bałachowicz – from 18 June 2004 until 28 February 2005 (in charge of the Bureau as the Deputy Head of the Bureau)
• Jerzy Bahr
  Jerzy Bahr
  Jerzy Bahr is a Polish diplomat and the Ambassador Extraordinary and Plenipotentiary of the Republic of Poland to the Russian Federation.- References :...
  
   – from 1st March 2005 until 22 December 2005
• Fleet Admiral Ryszard Łukasik – from 23 December 2005 until 12 January 2006 (in charge of the Bureau as the Deputy Head of the Bureau)
• Andrzej Urbański – from 13 January 2006 until 24 August 2006 (acting head of the Bureau)
• Władysław Stasiak – from 24 August 2006 until 8 August 2007
• Major General
  Major General
  Major general or major-general is a military rank used in many countries. It is derived from the older rank of sergeant major general. A major general is a high-ranking officer, normally subordinate to the rank of lieutenant general and senior to the ranks of brigadier and brigadier general...
  
   Roman Polko
  Roman Polko
  Major General dr Roman Polko is a Polish Army officer, acting chief of Biuro Bezpieczeństwa Narodowego , former commander of "GROM", doctor of military science studies, speciality: management....
  
   – from 9 August 2007 until 15 November 2007 (in charge of the Bureau as the Deputy Head of the Bureau)
• Władysław Stasiak - from 16 November 2007 until 15 January 2009
• Aleksander Szczygło - from 15 January 2009 until 10 April 2010
• General
  General
  A general officer is an officer of high military rank, usually in the army, and in some nations, the air force. The term is widely used by many nations of the world, and when a country uses a different term, there is an equivalent title given....
  
   Stanisław Koziej - from 10 April 2010