Help students understand the foundational steps of crime scene investigation with this engaging CSI gallery walk activity! Using the 7 S’s of crime scene investigation — Secure, Separate, Scan, See, Sketch, Search, and Secure the Scene — students rotate through stations that reinforce key forensic concepts through visual prompts and hands-on learning. This activity works well for science classes, forensic science electives, criminal justice units, or STEM rotations. Students analyze scenarios,