EN
The goal of this article is the analysis of the money laundering phenomenon in banking system. There were tested the theory of crying wolf and informational Laffer curve assumptions by using linear regression. It was made the verification of variables influenced on the number of suspicious transactions reports. Statistically insignificant variables are indicators: the value of fines which can be imposed on banks in case of failure to comply with obligation to report suspicious transactions and threshold transactions to GDP per capita. There is a positive relationship between the shares of costs for the implementation of anti money laundering regulations to the total operating costs and negative influence current expenditures on the volume of suspicious transactions.