Crime Scene Reconstruction Scientific Crime Scene Investigation MTMiller

Crime Scene Reconstruction Definition and Components Physical Evidence Best Suited Bloodstain Pattern Analysis Shooting Reconstruction Value and Limitations Sample Case

Definition and Components Determination of what happened based on what physical evidence is found at the crime scene. Components- Crime scene & patterned physical evidence Forensic laboratory test results Reasoning (common sense!) Experience

Types of Patterned Evidence Modus operandi/scene profile patterns Impressions-fingerprints, footwear, tire tread Clothing position or damage patterns Injury or wound patterns Glass fracture patterns Fire burn patterns Bloodstain patterns Evidence from a firearm

Wound Patterns

Glass Fracture Patterns Sequence of firing Direction of force

Burn Patterns

Bloodstain Pattern Analysis Definition Value or usefulness Reconstructions possible with stains Basic pattern types

Shooting Investigation Reconstructions Gunshot Residue Patterns- Range of Fire Determinations Muzzle to Target Distances Projectiles & Casings Markings & Trace Evidence Hole Shapes Ejection Distance & Arcs Trajectory Determinations Physical & Optical Methods

Sample Case for Reconstruction Miami-Dade County Officer Involved Shooting BSP Trajectory Analysis Wound Dynamics

Miami, Florida 103 bullet holes in door and walls Wounds in victim Bullet impact mark on shield Bloodstain patterns SWAT officers’ statements Shooter’s and victim’s positions