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1. For the purpose of this Protocol, “travelling abroad for the purpose of terrorism” means travelling to a State, which is not that of the traveller’s nationality or residence, for the purpose of the commission of, contribution to or participation in a terrorist offence, or the providing or receiving of training for terrorism.
2. Each Party shall adopt such measures as may be necessary to establish “travelling abroad for the purpose of terrorism”, as defined in paragraph 1, from its territory or by its nationals, when committed unlawfully and intentionally, as a criminal offence under its domestic law. In doing so, each Party may establish conditions required by and in line with its constitutional principles.
3. Each Party shall also adopt such measures as may be necessary to establish as a criminal offence under, and in accordance with, its domestic law the attempt to commit an offence as set forth in this article.