Whether it is called “dignified”, “proud” or “privileged death”, “voluntary killing”, killing at request”, “assisted suicide”, “mercy killing” or ”pity killing”… euthanasia’s legal, ethical and actual aspects have been the subject of discussions for centuries. The name of our topic, consisting of just two words, mercy killing, which are at first sight so contradictory (mutually exclusive), speaks for itself. In this paper the author underlines that, due to its increasing application, euthanasia has become unavoidable subject of criminal considerations and social interest. It draws the attention with its controversy, complexity, versatile forms of execution and possibilities for abuse. Through a prism of different theoretical stream...