Related Rule
Canada
Practice Relating to Rule 65. Perfidy
Section H. Simulation of protected status by using other internationally recognized emblems
Canada’s Geneva Conventions Act (1985), as amended in 2007, provides: “Every person who, whether within or outside Canada, commits a grave breach [of the 1977 Additional Protocol I] … is guilty of an indictable offence.” 
Canada, Geneva Conventions Act, 1985, as amended in 2007, Section 3(1).
Canada’s LOAC Manual (1999) provides that “the perfidious use of … protective signs recognized by the Geneva Conventions or [Additional Protocol] I” constitutes a grave breach of the 1977 Additional Protocol I and a war crime. 
Canada, The Law of Armed Conflict at the Operational and Tactical Level, Office of the Judge Advocate General, 1999, p. 16-2, § 8(a) and p. 16-3, § 16(f).
Canada’s LOAC Manual (1999), in its chapter on “War crimes, individual criminal liability and command responsibility”, identifies as a grave breach of the 1977 Additional Protocol I and a war crime the “perfidious use of … protective signs recognized by the Geneva Conventions or [the 1977 Additional Protocol] I”. 
Canada, The Law of Armed Conflict at the Operational and Tactical Levels, Office of the Judge Advocate General, 13 August 2001, § 1608.2.f.