There are same circumstances in some places and times which increase the risk of crime
commitment. In other words, the environment provides circumstances where criminals find
opportunities to commit a crime. Thus, the temporal–spatial analysis of crime reveals this
important fact that because of dominating local, economical, social, and cultural structure in
some parts of the city, the rate of committed crimes are high, and in contrary, some urban
places serves as barriers to criminal acts. The central part and the transit areas of
Kermanshah City are causing temporal-spatial segregation and providing a susceptible place
to crimes of trafficking and abusing the drugs, because of extraordinary density of general
activities, manpower migration, ethnic diversity, presence of transient and instable
population, and increasing social and cultural distinctions. This study was conducted to
analyze spatial organization of trafficking and abusing the drugs in the city center of
Kermanshah and to identify spatial patterns facilitating the committed crimes. The research is
of descriptive - analytic method. To identify and understand the spatial patterns of crimes of
drug abuse and drug trafficking within the central part of the city of Kermanshah in statistical
blocks, it was used Geographic Information Systems (GIS). The statistical population of study
consisted of all cases of crimes of drug abuse and drug trafficking committed during an
annual period in the city of Kermanshah. The findings indicate that of all 857 crimes relevant
to the drugs committed in Kermanshah, 99 cases (11.7%) has been occurred in the central
part of the city, whereas this central part amounts to 4% of the total area of the city. Relative
crime density is two cases per square kilometer within the central part of the city, while it is
one per square kilometer for the city of Kermanshah. In fact, the rate of committed crimes of
drug abuse and drug trafficking is twice in the central part of the city of Kermanshah more
than the average in the city. Also, the spatial distribution of the crimes follows the cluster and
centered pattern and the most important focus of the crimes drug abuse and drug trafficking
coincides Azadi Square and Javanshir area in the central part of Kermanshah.