Ibinyabiziga bikoreshwa nka tagisi, bitegerereza abantu mu nzira nyabagendwa, bishobora gushyirwaho itara ryerekana ko ikinyabiziga kitakodeshejwe. Iryo tara rishyirwaho ku buryo bukurikira:

Ni itara ry’icyatsi rishyirwa ibumoso

Ni itara ry’icyatsi rishyirwa imbere ku kinyabiziga

Ni itara ry’umuhondo rishyirwa inyuma

A na C ni ibisubizo by’ukuri

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Igisubizo nyacyo kiboneka ku nyuguti ya B. Ibi bishingiye ku mategeko y'izina kwayo y'umuhanda mu Rwanda.

Gerageza ikizamini cyuzuye gifite ibibazo 20 nk'ibyo mu kigo cy'igihugu cy'igipolisi.