Using data mining techniques to help fighting crime sounds good. It is certainly an interesting topic. Can you imagine saying that you have caught a criminal using a decision tree? 🙂 Although this view is very simplistic, data mining seems to be helpful in some situations as pointed out by LocalTechWire. The main idea is to use data mining methods to identify crime trends and then anticipate crimes. This is certainly a trendy topic for data mining, proved by the publication of a new book by Colleen McCue: Data Mining and Predictive Analysis: Intelligence Gathering and Crime Analysis.