Criminal law is regulated primarily in the Criminal Code (StGB), which, in addition to the general provisions for criminal law, standardizes a large number of criminal offenses. However, crimes are not only found in the Criminal Code, but also in numerous other laws such as the Narcotics Act, Medicines Act, etc., so-called secondary criminal law. Regulations on criminal procedure (formal criminal law) can be found in particular in the Code of Criminal Procedure (StPO) and the Court Procedure Act (GVG).
Criminal law includes the entirety of all legal provisions that regulate criminal offenses or affect criminal proceedings. Criminal law is one of the three big areas of law in Germany, alongside civil law and public law, with criminal law systematically forming a part of public law.