Active living researchers interested in how unsafe environments influence behavioral choices frequently have to use crime data. There are a number of sources of these data, but the advantages and limitations of these data are often unknown to researchers unfamiliar with crime research. This session, presented by two researchers who specialize in the use of crime data, described a) the variety of sources of crime data that can be used, b) the types of questions these sources can address, c) the challenges to obtaining crime data, d) the problems inherent in these sources, and e) strategies on how to address these problems.