Mystery-of-the-Blood-Stain-RVFM-200-009-P-In-this-activity-students-act-as-lab-technicians-&-assist-investigators-by-examining-evidence-collected-at-a-fictional-crime-scene-Students-first-use-a-presumptive-blood-test-to-determine-if-a-substance-on-a-stained-piece-of-cloth-may-be-blood-&-then-determine-the-blood-type-of-a-sample-collected-at-the-scene-P-P-Students-can-then-compare-their-results-to-those-of-samples-provided-from-two-suspects-P-RVFM-Forensics-Using-Simulated-Blood