General Part
Chapter I
General Provisions
Section 4. Applicability of The Criminal Law Outside the Territory of Latvia
(4) Foreigners who do not have a permanent residence permit for the Republic of Latvia and who have committed a criminal offence in the territory of another state, in the cases provided for in international agreements binding upon the Republic of Latvia, irrespective of the laws of the state in which the offence has been committed, shall be held liable in accordance with this Law if they have not been held criminally liable for such offence or committed to stand trial in the territory of another state.
Ne bis in idem - foreign court
Universal jurisdiction
EDIT.