Data mining is the computer-assisted process of digging through and analyzing enormous sets of data and then extracting the meaning of the data and it is the process of analyzing data from different perspectives and summarizing it into useful information. Data mining plays an important role in terms of prediction and analysis. Crimes are a social nuisance and cost the people society dearly in several ways. Crime investigation has very significant role of police system in any country. Clustering is the task of grouping a set of objects in such a way that objects in the same group are more similar to each other than to those in other groups.