The monograph is devoted to the important and topical topic of the issue of cooperation of law enforcement authorities in the context of combating money laundering. Law enforcement authorities in Ukraine are active in combating money laundering, but unfortunately, in most cases, they fight independently and separately without proper interaction with financial institutions. In recent years, our country has made progress in combating money laundering, but it cannot be rested on its laurels. Modern society dictates the need to develop innovative approaches to forming tools for combating the shadow segment of the country's national economy and mechanisms for combating the legalization of income. Effective organization and step-by-step well-thought-out implementation of countermeasures will make it possible to form somewhat fruitful and highly effective state control and monitoring over the circulation of financial funds in the long term. For scientists, lecturers, postgraduate students, doctoral and students of higher educational institutions majoring in law and all those who are interested in the issue of interaction of law enforcement bodies with financial institutions.