Effective pretrial investigation requires not only imagination, but also careful marshaling of evidence and careful organization of thinking about evidence. It frequently requires the application of a variety of distinct marshaling and analytical methods, such as the construction of event chronologies, the formation of scenarios, orderly assessment of the credibility of testimonial evidence, and the marshaling of evidence on the basis of legal rules and their elements. Students in the course become acquainted with a tool kit of evidence marshaling strategies for investigation. They work in teams and conduct actual investigations of real-world problems.