To do this exam crime scene requires that you purchase "The Case of Lois MacArthur" from Wards Natural Science and then some modification to the lab. I have found that the lab "as is" in the kit is too easy for high school level forensics, but I have modified it to be very comprehensive of the course and to require more lab analysis and deductive reasoning to solve.
You will need to obtain 7 sets of Fingerprints on 10 print cards also (one being the killer) and have a selected print blown up for analysis. I would remove the handwriting part as this makes it too obvious. I also changed the killer to Luise which makes the blood typing part less conclusive. Please email me questions if you want to use this. Its a great exam. The rubric is also online for 1.00.