PL
The axiological fundaments of criminalisation of certain human behaviours are set out in the Constitution of the Republic of Poland. Their application is problematic, especially in the case of crimes and petty offences regulated outside of the Criminal Code and the Code of Petty Offences. The analysis of the examples of such criminal offences, touching in particular the commercial activity, brings to the conclusion that the prinicples of criminalisation used by the Polish legislative power are unclear. The parliament does not provide the courts and administration with any motives of its decisions, which may hinder the proper application of law. Such situation encourages the jurisprudence to propose different procedural schemes for the decision on criminalisation.