R1-28+Notes-Spencer

-Crime Scene is where a crime took place - Most important thing is to preserve the crime scene and not let anything change it
 * Crime Scene Analysis**

-When a crime scene is first discovered, the initial call goes to 911 -Police are then dispatched to the scene -CSI then follows -If the perpetrator is present, then the officer makes the arrest
 * The Initial Call**

-Homicide Detectives are in charge of the investigation -Crime scene is clearly marked out with tape in order to keep evidence as fresh as possible -The first 24 hours are considered the most crucial because evidence is fresh, and because people’s minds are fresh as well -Before anything is done in the investigation, the investigators must decide if they need a search warrant. If they don’t have one and proceed, than any evidence that they find can be thrown out in a court of law -Warrant must be obtained from a judge
 * Processing The Scene**

-Physical Evidence is placed into five categories - Temporary - Conditional -Associative -Pattern -Trace/transfer -Investigators are looking for -Fingerprints -Impressions from tools, shoes, car tires, fabric, and teeth -Body fluids -Biological evidence -Trace evidence such as glass, plant spoors, fibers, pain chips, gunshot residue, and accelerants -The Evidence collected at the scene serves multi purposes -Prove that a crime has been committed -Indicate key aspects of the crime -Establish the identities of the victim or suspect, or determine what kind of investigation must be done to identify them and see how they interacted -Corroborate -Help to exonerate a suspect who is innocent -Provide leads for further investigations -Pressure suspects into giving confessions
 * Types Of Evidence**

-Types of Kits -Fingerprinting Kit -Casting Kit -Tool Mark Impression Kit -Laser Trajectory Kit -Broken Glass Kit -Gunshot Residue Kit -Blood Pressure Kit -Serology Kit -Entomology Collecting Kit -Hazmat Kit -Sexual Assault Kit
 * Crime Scene Kits**

-Job is to: -Investigate all deaths caused by violence -Orders the autopsy -Provides identification of victims -Conducts Inquests -Holds unidentified remains in the morgue -Keeps violent death statistics
 * The Coroner**

-Photos taken in both black and white print -Use cameras with different types of lenses -Use cameras with different types of flashes -Tripod used for steady and crisp pictures -Photo log kept on each shot -Filters for better depth -Different types of scales -Take at least two shots of everything -Use digital cameras in order to see the result quicker -Photograph the bodies from five angles -Head To Feet -Right Side -Feet To Head -Left Side -Straight Down From Above
 * Photographing The Scene**

-All evidence is bagged, to keep it undisturbed -Everything that is collected is documented -Labels are placed on everything, to make the investigation run smoother
 * Collecting And Preserving Evidence**