This diploma thesis addresses the Police State Security Law, which came into force on 1st July 2016. In the beginning, the general provisions about the bodies of state security and the state security itself will be clarified. Following, the list of crimes, which will trigger the investigatory powers in the Police State Security law will be outlined. The main part of the paper will compare the investigatory powers of the Police State Security law with the equivalent investigatory power of the Code of Criminal Procedure. An important part is the comparison of the requirements to perform these powers. Furthermore, the legal protection by the legal protection commissioner in the Police State Security law and the possible problems regarding his independence will be discussed. Additionally, the paper will address the criticism regarding the law and the chances of repeal due to unconstitutionality of it.