Slovak penal law is generally considered as one of most important manifestation of Slovak Republic supremacy. Great importance has penal law also in that ground that with its settings it directly prevents constitutional establishment of Slovak Republic as well. It counts not only for ultimate national and state interests' protection, but also for protection of interests of inhabitants which is demonstrated in its competencies to formulate conditions of penal responsibility and to secure procedural progression of individual subjects of criminal procedure. In present era especially after entrance of Slovak republic into European structures is tendency of some European politicians and lawyers with regard on principles of European territoriality gradually unify Criminal procedural codes of various member states with goal of complete unification and therewith unification of European penal space. This nature however for national legal adjustments including Slovak republic in not friendly and therefore integration in this context is provided on so called national level in shape of transposition of individual norms of European law under strict preservation of elements of state supremacy.