UN Convention Against Corruption

Article 16.1 Adopt legislative and other measures to establish as a criminal offence, when committed intentionally, the promise, offering or giving to a foreign public official or an official of a public international organization, directly or indirectly, of an undue advantage, for the official himself or herself or another person or entity, in order that the official act or refrain from acting in the exercise of his or her official duties, in order to obtain or retain business or other undue advantage in relation to the conduct of international business.