Unit 2 Crime Scene Basics Lesson 1 Arriving

Unit #2 – Crime Scene Basics Lesson #1 – Arriving at the Scene Learning Goals Know: Steps taken at the crime scene Understand: Reasoning behind steps and precautions Be Able To: Explain and perform basic crime scene investigation and evidence collection

Working the Crime Scene (Actions) Take care of EMERGENCY SITUATIONS first - Render FIRST AID to victims if needed - Deal with unsecured WEAPONS

Working the Crime Scene (Actions) Identify, detain, and question person who REPORTED THE CRIME - May have VITAL INFORMATION - May in fact become a SUSPECT

Working the Crime Scene (Actions) If possible determine the PERPETRATOR by inquiry or observation.

Working the Crime Scene (Actions) Detain everyone who is present at the scene - EYEWITNESSES to events: prior to; during; and after the crime may be important! - Statements should be taken when information is FRESH

Working the Crime Scene - Actions Summon assistance if necessary. - CROWD CONTROL - ADDITIONAL INVESTIGATORS

Working the Crime Scene - Actions Physically secure the area. Use uniformed officers to: - ROPE OFF SCENE - LIMIT ACCESS - SECURE WITNESSES

Working the Crime Scene - Precautions • • Avoid Assign Secure Keeptouching rushing witnesses assistants and investigate into orseparated (ifmoving the available) area “additional objects if asnot to much specific necessary atcrime as thepossible scene tasks scenes” –––Original Avoids Keeps Was Limits a things body unnecessary influence stateor orderly can evidence on never contamination eachbe moved? other restored! of the scene – Is Avoids thererepetition a vehicle that of work should be secured?

The “Ideal” Crime Scene Team • Would include all of the following… Evidence Team Collector(s) Leader Master Sketch Photographer Measurer Note Preparer Takes Collects, Makes Takes Gives Logs pictures the tags, rough measurements directions and observations, of scene preserves andand final and sketches coordinates descriptions, ofevidence. the scene. of the all and work scene. actions at the fromscene. the scene.