This article will expand upon the techniques of Criminologist, D. Kim Rossmo, and Social Psychologist, David Canter for determining a serial criminal's base of operations. The basic framework for our investigation is that of Rossmo, but uses a different criterion for analysing the relationship of points within the hunting area defined by the crime sites. The approach here, based on the work of Canter, is more akin to Fuzzy Set Theory than Probability Theory. The difference between the approach in this article and Canter's approach is that the strength of the relationship of a given point to a particular site has a base that is determined by the nature of the crime and the local societal norms as determined by using the Analytical Hierarchical Procedure of Thomas Saaty. (Contains 8 figures.)