Purpose of the study: The purpose of this article is to analyze recent legislative changes to life imprisonment in Poland and to examine the consequences of introducing an absolute form of this penalty, called “an absolute life sentence”. Methodology: This paper combines two methods: a comparison of legal documents and legal writers' thoughts and author observation of this phenomenon. Main findings of the study: The main conclusion is that the changes introduced by the legislator concerning life imprisonment —specifically, the court discretion to optionally impose a parole ban under two circumstances— may not result in positive effects for crime deterrence. Consequently, this could worsen the already challenging task of educational rehabilitation efforts with the population of life prisoners. The Polish penitentiary system will face challenges related to ageing prisoners serving life sentences without parole and the natural consequences of this issue. Furthermore, the recent changes could make it difficult for Poland to cooperate on criminal law matters with countries that consider 'absolute life imprisonment' to be inhumane. Application of the study: The presented research relates to various scientific fields, e.g. criminal law, executive penal law and sociology. Originality/Novelty of the study: This problem is still a current matter. Life imprisonment is a relatively new punishment in Poland, and the Polish penitentiary system continues to look for new ways and methods for dealing with group of life-sentenced prisoners. As a result of the latest amendment, the Polish prison administration will once again face the challenge of implementing completely new severe penalty which is a life imprisonment.