The topic of the master's thesis includes the comparison of different forms of state supervision, with an emphasis on the comparison of other forms of supervision with state audit. The importance of their existence in the economic system is unquestionable, but the quality of the control process and the system as a whole is also important. The state audit supervises in the name and on behalf of the state, and checks whether economic resources are fairly distributed among the users of the state budget. The masters's thesis also includes analyze of the Financial Inspectorate, which monitors the application of regulations in the field of money laundering and terrorist financing, the work of Anti - Money Laundering Office which deals with suspicious transactions within this area, budgetary control that monitors the purpose of using budget funds, the Tax administration that correctly determines of the tax liability and the State Attorney's Office which takes legal action on behalf of the state due to the existence of irregularities. These are all forms of state supervision. The first part describes the importance of oversight and supreme audit institutions. The second part includes an insight into the operations of the State Audit Office and a description of the work of other forms of state supervision in the territory of the Republic of Croatia. The last part compares the annual reports of the state audit and the bodies in charge of preventing money laundering and terrorist financing on the example of the Republic of Croatia and the Republic of Slovenia. Most of the literature for writing this masters thesis is available online due to the transparency of the operations of state bodies that conduct some form of supervision. Also, laws regulating a certain area of activity were used. All conclusions and mutual similarities and differences of individual forms of supervision are summarized in the conclusion of this thesis.