I. General Provisions
Article 4
Liechtenstein jurisdiction
(1) The competence of the International Criminal Court or of an International Tribunal does not preclude the competence of Liechtenstein courts.
(2) There is no Liechtenstein jurisdiction however in respect of crimes for which a person has been sentenced or found not guilty by the International Criminal Court or an International Tribunal in an enforceable judgement.
Complementarity
Ne bis in idem - ICC
Ne bis in idem - State's own court
EDIT.