A crime has been committed and all that’s left behind is … a broken car door handle? Crime scene investigators are on the case. CSI workers are trained to solve crimes based on any trace of evidence they can find, from a broken car door handle to a single drop of blood. These are the professionals who hunt down criminals, find missing people, and help investigate terror attacks. 32 pages, full-color photographs, paperback, HI-LO (Reading level grade 3). Save $1 per book when ordering 10 or more copies.