Open Source Geographical Profiling?

elander asks: "I've been searching for a while for anything to do with geographical profiling, specifically systems that narrow the search area in the hunt for serial criminals (burglars, robbers, rapists etc). So far, the only system I've found is Rigel, a commercial software package, only available through leasing from ECRI. I wonder, aren't there any Open Source alternatives? I'm about to (hopefully, last round of approvals is under way) build a crime scene information system for a Swedish police authority, based on Open Source, and I'd like to be able to offer something along these lines as a future extension."