Related Rule
Canada
Practice Relating to Rule 100. Fair Trial Guarantees
Section D. Information on the nature and cause of the accusation
Canada’s LOAC Manual (1999) provides: “Accused persons must be promptly informed, in writing, and in a language which they understand, of the charges brought against them.” 
Canada, The Law of Armed Conflict at the Operational and Tactical Level, Office of the Judge Advocate General, 1999, p. 12-6, § 54.
With respect to non-international armed conflicts, the manual states: “Accused persons shall be informed of the particulars of the offence charged.” 
Canada, The Law of Armed Conflict at the Operational and Tactical Level, Office of the Judge Advocate General, 1999, p. 17-4, § 29(a).
Canada’s LOAC Manual (2001) states in its chapter on rights and duties of occupying powers: “Accused persons must be promptly informed, in writing, and in a language, which they understand, of the charges brought against them.” 
Canada, The Law of Armed Conflict at the Operational and Tactical Levels, Office of the Judge Advocate General, 13 August 2001, § 1232.1.
In its chapter on non-international armed conflicts, the manual states: “As a minimum, accused persons: a. shall be informed of the particulars of the offence charged”. 
Canada, The Law of Armed Conflict at the Operational and Tactical Levels, Office of the Judge Advocate General, 13 August 2001, § 1716.2.a.