Related Rule
South Africa
Practice Relating to Rule 58. Improper Use of the White Flag of Truce
South Africa’s LOAC Manual (1996) defines the “abuse of … a flag of truce” as a grave breach of the law of war and a war crime. 
South Africa, Presentation on the South African Approach to International Humanitarian Law, Appendix A, Chapter 4: International Humanitarian Law (The Law of Armed Conflict), National Defence Force, 1996, §§ 39(e) and 41. This manual is also included in Chapter 4 of the Draft Civic Education Manual of 1997.
South Africa’s Revised Civic Education Manual (2004) provides that “[a]buse of … a flag of truce” is regarded as a grave breach of the law of armed conflict and a war crime. 
South Africa, Revised Civic Education Manual, South African National Defence Force, 2004, Chapter 4, §§ 61(e) and 57.
South Africa’s ICC Act (2002) reproduces the war crimes listed in the 1998 ICC Statute, including in international armed conflicts: “making improper use of a flag of truce … resulting in death or serious personal injury”. 
South Africa, ICC Act, 2002, Schedule 1, Part 3, § (b)(vii).