Abstract
Crime commission is an unavoidable singularity in any given and documented society functioning under the umbrella of established rules and regulations. Cameroon and Ukraine have engaged huge steps in establishing credible laws, all in the preservation and protection of fundamental human rights of those presumed of crime commission.This article establishes that, it is the responsibility and role of the investigative police in carrying out investigation and respects the due process of the law in the course of its investigation so that their act should not contravene the right of the suspect or accused in question.