In conclusion, the desire to commit an act would not change the ascertainment that the act should be committed with direct intent will, however, impact the intent and the burden of the act by satisfying additional subjective elements. Only art. 30 of the ICC Statute is an exception presenting the definition of "mental element", though it is perceived differently by the doctrine representatives from different countries. The concept by O. Triffterer has not won worldwide recognition among the supporters of the theory that there should be applied the provision stipulating otherwise than art. 30 of the ICC Statute and those who do not recognise the difference between "Tatbestand" and "mens rea". It seems that the Triffterer's concept has not been approved as, allegedly, the principles of criminal responsibility should be distinguished from the crime definitions within the ICC jurisdiction. Taking into account the ICC experience, a conclusion may be drawn that art. 30 is applied when there are no other specific provisions relating to mental element in the regulations of the ICC Statute, the Elements of Crime or customary law. [ABSTRACT FROM AUTHOR]