The concept of a criminal offence in the Czech criminal Code

I Abstract This diploma thesis focuses on the matter of the concept of a criminal offence in the Czech Criminal Code, as one of the major issues within criminal liability. The year 2009 brought the new Czech Criminal Code and with it also a few changes. One of the most discussed ones was the transition from material or material- formal concept of a criminal offence to a formal concept of a criminal offence. Thanks to the simultaneous introduction of the principle of subsidiarity of criminal repression, as a substantive correction of criminal lawlessness, this formalized concept has become a more of a materialized formal concept. So suddenly, there are two corrections of criminal lawlessness, the substantive one, as mentioned, and also a procedural correction based on the facultative option of the prosecutor to terminate the prosecution for reasons of ineffectiveness. The opinions on the matter of the necessity of both of the corrections in Czech criminal law differs among criminal law experts. That is also why I presented them in contrast and evaluate them at the end of the thesis. This thesis strives to describe and summarize the problem of the concept of crime to be as comprehensive as possible, so it is divided into four main parts, which are logically connected to each other and each of them is divided..