trestní
Trestní is a Czech adjective meaning related to punishment or criminal law. It is commonly used in legal and official language to denote topics connected with the punishment of crime and the processes by which criminal liability is determined. In this sense it appears in terms such as trestní právo (criminal law), trestní řád (Criminal Procedure Code), trestní řízení (criminal proceedings), trestní odpovědnost (criminal liability), trestní sankce (criminal sanctions), and trestní soud (criminal court).
A closely related adjective, trestný, is often used to describe the offense itself. For example, trestný čin
Trestní is neutral in tone and widely found in statutes, court decisions, academic writing, and other formal
In summary, trestní denotes aspects of criminal law, procedures, and punishment, whereas trestný refers to the