ENThe article discusses the ultimate limits of crime proceeds control measures from the perspective of the proportionality principle. The concept of the general illicit enrichment offence (GIEO) is explored as it is considered one of the most radical illicit asset control measures. It is based on two extreme elements: first, it reaches broadly beyond the all-crime proceeds approach and targets any unexplained assets. Secondly, it provides highly intrusive measures, involving both the confiscation of assets and, in addition, criminal sanctions. The advantages and risks of the concept are examined from both practical and basic legal principle perspectives. The author presents recent results from the Lithuanian penal justice system, where the GIEO has been introduced into penal law and practice since the end of 2010. A rich body of case law from the European Court of Human Rights (ECtHR) and European Union Court of Justice (EUCJ) serves as the background of the analysis. The author concludes that the concept of GEIO is in conflict with the proportionality principle. Although the Lithuanian Constitutional Court did not find proportionality issues with the GIEO, the prospects of successful challenges with respect to the proportionality principle in the ECtHR and the EUCJ appear promising. Keywords: illicit enrichment; proportionality principle; crime proceeds; confiscation; corruption. [From the publication]