The article studies characteristic aspects of criminal laws of Great Britain. It is noted that the country does not have a single regulation containing criminal law provisions serving as the basis for criminal liability. Instead, criminal law is based on statutes that unite different laws. As an example, the author mentions the Theft Act 1968 and the Fraud Act 2006 that cover the nature of theft, deceit, and extortion. The article reviews crimes involving violations of the monetary and credit system, in particular, theft, robbery, deceit, extortion, money laundering. The importance of improving legal regulation of combating shadow economy is emphasized. Besides, the article notes the need to ensure transparency of corporate actions to prevent criminal acts.