This bachelor thesis deals with the importance and impact of the Antimonopoly Office in areas of the public procurement. The theoretical part firstly describes the activities of the Office for the Protection of Competition. History of the Office, its competence and structure is approached there. Furthermore, individual issues, which the Office for the Protection of Competition does, are mentioned. In the main part, there is a closer description of the Public procurement and its legal regulations. Moreover, a separate chapter is a division of the Public procurement, further explanation of the term the contracting authority, the principles which have to be abided for the award of the Public procurement and the types of tender procedure. The a...