Related Rule
Practice Relating to Rule 29. Medical Transports
Section A. Respect for and protection of medical transports
Nigeria’s Manual on the Laws of War provides: “Convoys of wounded or medical equipment must be respected and protected as mobile medical units.” 
Nigeria, The Laws of War, by Lt. Col. L. Ode PSC, Nigerian Army, Lagos, undated, § 36.
Nigeria’s Military Manual (1994) provides:
Specifically protected … transports recognised as such must be respected … Specifically protected [transports] shall not be touched or entered, though they could be inspected to ascertain their contents and effective use. 
Nigeria, International Humanitarian Law (IHL), Directorate of Legal Services, Nigerian Army, 1994, p. 45, § (f).