Seven S's of a Crime Scene
1st Responders - Securing the scene provide security log, call in team of experts
What is Step 1 - Securing the Scene
The application of science to the criminal and civil laws that are enforced by police agencies.
What is Forensic Science?
This unit examines discharged bullets, cartridge cases and shotgun shells.
What is the Firearms/ Forensic Ballistics Unit?
Analyzing Physical Evidence, Providing Expert Testimony and Furnishing Training for those who process crime scenes
What are the functions of a Forensic Scientist?
_____ can prevent contamination of during evidence collection/handling.
What are gloves/ PPE (personal protective equipment)?
Triangulation - 2 datum points, ruler and photos
What is Step 4 - Seeing the Scene
A person who has seen something or someone and communicates that information to investigators.
What is an eyewitness?
This unit studies handwriting and typewriting, analyzes paper and ink and examines indented writings.
What is the Document Examination Unit?
Forensic Scientists are considered this kind of witness when they testify in a court of law.
What is and Expert Witness?
This involves forming a hypothesis of sequence of events from before the crime through its commission.
What is a Crime Scene Reconstruction?
Grid, Linear, Quadrant (Zone), and Spiral
What a person perceives using his or her senses.
What is Observation?
This unit perfomrs DNA profiling on dried bloodstains and compares hairs and fibers.
What is the Biology Unit?
A forensic scientist should be an advocate of this when they testify at a trial.
What is Truth?
Blood, Weapon, Impressions, Digital, & Documents.
What are things found at a crime scene (Evidence)?
Directional compass, Distance Scale, Fixated Objects (windows), If Outside (trees), Victim & Evidence position.
What is Step 5 - Sketching the Scene
Deriving a conclusion from the facts using a series of logical steps.
What is deductive reasoning?
A specialized team of police/ firefighters to investigate origin and cause of fires.
What is the Fire/Arson Investigation Unit?
Remember that eyewitness accounts and your own thinking can include ....
What is prejudices?
First Hand Observation from Eyewitness, Video of victim being killed, or Confession to a crime.
What is Direct Evidence?
Air Dry if wet, paper bindle, Collectors Name on Seal, Case number, Inventory Number, Date & Time.
An individual whom the court determines to possess knowledge relevant to the trial that is not expected of the typical layperson.
What is an Expert Witness?
This unit examines and records physical evidence.
What is the Photography Unit?
Reports from an_____ about crime-scene events often vary.
What is an eyewitness?
Plants, Natural Fibers, Hair, & Pollen.
What is Biological Evidence?
Photos of Primary & Secondary Crime scene,
What is Step 3 - Scanning the Scene
The idea that when 2 objects come into contact with each other they exchange materials between them.
What is Locards Exchange Principle?
The studying of insect behavior can give the time of death.
How is Entomology used in Forensic Sci.?
Forensic Scientist participate in training law enforcement personnel in this activity.
What is proper recognition, collection and preservation of physical evidence?
Evidence that is Physical or Biological in nature.
What is Circumstantial Evidence?
A process that uses strict guidelines to ensure careful and systematic collection, organization and analysis of information.
What is the Scientific Method?
A type of circumstantial evidence, examples include hair found on a brush, fingerprints on a glass, blood drops on a shirt, and soil tracked into a house.
What is Trace Evidence?