Chapter I. Criminal law, scope of criminal law… and more.

[8. gr. a.
A person has now received a criminal conviction in a State where the offense was committed, cf. 2. tölul. Paragraph 1 Article 5, or in a State party to the Convention on the International Validity of Criminal Matters of 28 May 1970 [or international agreements within the Schengen area] 1)and shall not sue him, convict him or enforce sanctions in this country for the same offense for which he was convicted in that state if:
1. he was acquitted,
2. the sanctions imposed have already been enforced, are being enforced them, they have lapsed or have been declared in accordance with the law of the State in which the judgment was given;
3. he has been convicted without a sentence or other sanction having been determined.

Part 2. Investigations.
Section VII. General rules on investigations.
Article 57
When the police consider that the investigation is complete, and that evidence has been revealed that could lead to a conviction, they shall send the investigation materials to a prosecutor, unless an action may be brought by the commissioner of police himself or herself under the first and fourth paragraphs of Article 24. Together with the investigation materials, the police shall send a report covering the investigation in accordance with the first paragraph of Article 56.
The prosecutor may order that the police take further investigative measures if he or she considers this necessary (cf. the third paragraph of Article 21 and the fourth paragraph of Article 23).
If an investigation against an accused person has been terminated because the case materials were not considered sufficient as the basis for an indictment, then the investigation against the accused shall not be reopened unless new case materials have come to light or are likely to come to light. If an investigation against an accused person has been terminated, the police shall inform the person, who shall be entitled to have this confirmed in writing.

Chapter I. Conditions for extradition.

Article 8
Extradition is not permitted when the person wanted to be extradited has been convicted or acquitted in this country for the criminal offense in question.

''Article 7 Ne bis in idem''

A person will not be charged or convicted in this country for an act for which a judgment
has been handed down by the court.