Parliamentary oversight of the executive has a well established tradition in the system of government. Its origins date back to the beginning of parliamentary history. In a democratic state, it is directly related to the legal and systemic guarantees of protection of the principles of a democratic state ruled by law. In our times, parliamentary oversight of the executive is considered as basic element of parliamentary system of exercise of ruling powers, and constitutes part of systemic mechanisms by which the sovereign power of the Nation is accomplished. In the political system of the Third Republic of Poland, parliamentary oversight of the activities of the Council of Ministers provides one of the most important platforms of relations between parliament and the government. Article 95(2) of the Constitution confers the exercise of parliamentary oversight on the Sejm. By this oversight some attributes of 'oversight powers' of parliament are realised. It is indeed, the constitution which conferred on parliament (most often on its both chambers - the Sejm and the Senate - the exercise of oversight of the activity of many other organs of the State; e.g. the Supreme Chamber of Control, the National Broadcasting Council, the Commissioner of Citizens Rights. The oversight of the activities of the Council of Ministers exercised by the Sejm includes all areas of systemic activity of the government. It extends to actions undertaken by the Council of Ministers, ministers and the entire organisational system of government administration. The systemic nature and purpose of parliamentary oversight in relation to the government should be considered in close relation with elements of political construction of parliamentary government, particularly with the principle of political accountability of the Council of Ministers and its members to the Sejm. Parliamentary oversight of the government exercised by the Sejm and, in a limited degree, by the Senate, is functionally aimed at political scrutiny of main directions of government policy. Its scope covers all areas of activity of the government and government administration. Under the parliamentary system of government, such oversight is treated as particularly important platform of exerting influence by parliament on the government.