CAMBODIA – PENAL CODE
BOOK ONE - GENERAL PROVISIONS
TITLE 1 - THE CRIMINAL LAW
CHAPTER 3 - TERRITORIAL APPLICATION OF CAMBODIAN CRIMINAL LAW
SECTION 2 - OFFENCES COMMITTED OUTSIDE THE TERRITORY OF THE KINGDOM OF CAMBODIA
Article 23: Prohibition against cumulative charging and convictions
No one may be prosecuted for the same conduct for which he or she has already been finally tried abroad and who, in the event of conviction, establishes that he or she has already served the penalty or that the penalty has been extinguished by statute of limitation.
Ne bis in idem
Ne bis in idem - State's own court
EDIT.