Artikel 25

1. The Parties shall co-operate with each other, in accordance with the provisions of relevant international instruments on international co-operation in criminal matters, or arrangements agreed on the basis of uniform or reciprocal legislation, and in accordance with their national law, to the widest extent possible for the purposes of investigations and proceedings concerning criminal offences established in accordance with this Convention.
2. Where no international instrument or arrangement referred to in paragraph 1 is in force between Parties, Articles 26 to 31 of this chapter shall apply.
3. Articles 26 to 31 of this chapter shall also apply where they are more favourable than those of the international instruments or arrangements referred to in paragraph 1.