Article 18. [Provisions to secure protection of law]

(2) Every person who is charged with a criminal offence --

(b) shall be informed as soon as reasonably practicable, in a language that he understands and in detail, of the nature of the offence charged ;

Article 67
Rights of the accused
1. In the determination of any charge, the accused shall be entitled to a public hearing, having regard to the provisions of this Statute, to a fair hearing conducted impartially, and to the following minimum guarantees, in full equality:
(a) To be informed promptly and in detail of the nature, cause and content of the charge, in a language which the accused fully understands and speaks