Member States shall take the necessary measures to ensure that providing instruction on the making or use of explosives, firearms or other weapons or noxious or hazardous substances, or on other specific methods or techniques, for the purpose of committing, or contributing to the commission of, one of the offences listed in points (a) to (i) of Article 3(1), knowing that the skills provided are intended to be used for this purpose, is punishable as a criminal offence when committed intentionally.