Соответствующая норма
Practice Relating to Rule 106. Conditions for Prisoner-of-War Status
Section A. Distinction from the civilian population
Kenya’s LOAC Manual (1997) states:
While engaged in combat action or in a military operation preparatory to it, combatants must distinguish themselves from the civilian population. It is customary for members of organized armed forces to wear uniform. Members of any other militias, volunteer corps or organized resistance movements wear a fixed recognizable distinctive sign or at least [carry] their arms openly. 
Kenya, Law of Armed Conflict, Military Basic Course (ORS), 4 Précis, The School of Military Police, 1997, Précis No. 2, p. 8.