Throughout Latin America, citizen security has been negatively affected, due to the increase in criminal acts and the lack of optimal management of the security system in the different countries, in addition to the deficiency of technological equipment that covers all needs of the police forces to fulfill their obligations. In Peru, one of the aspects that most harms citizen security is the lack of a video surveillance system that provides people detection functions. That is why the objective of this article is to efficiently influence the improvement of the process of detecting people in the criminalistics unit of the PNP (Peruvian National Police) in Huancayo city, Peru. For this research, the Engineering - Cascade Model methodology was used, which confers four stages: requirements analysis, design, construction, and testing. Regarding the results, the Degree of similarity indicator re...