JH+R.+1-28

R p.(1-28) =Notes -= grid search - they walk the appropriate area, shoulder to shoulder, stopping only when someone in the line signals that something appears to be evidence Types of evidence : Testimonial - comes from anyone who was near the scene and saw something, eye witnesses are often unreliable though
 * Scene of the Crime
 * Crime scene - location where an illegal act took place, and they can be located anywhere
 * Criminalistics - the application of scince to the physical evidence, such as blood stains, DNA, and bullet trajectories
 * when an area becomes a crime scene the most important thing is to preserve it for evidence
 * the initial call
 * when the crime is first discovered a call goes out to the authorities by 911
 * then the police come and assess the crime to see if they need some more authority
 * then they record pertinent observations ( open doors, distinct odors, if someone has tried to clean up)
 * then they see if the perpetrator left or took anything from the scene

Physical - five catagories - Temporary - conditional (specific conditions at the crime) - Associative (links a suspect to a scene - Pattern (blood impresions residue) - Trace (produced by physical contact with a surface) Fingerprints impressions from tools, shoes, and car tires body fluids (blood, semen, and saliva) weapons or evidence of a weapon such as bullet casings questioned documents prove a crime has been commited indicate key aspects of a crime establish the identities of the victim or suspect provide leads for futher investigation pressure suspects into giving evidence They include: crime scene tape and or chalk, magnifying glass, flashlight, tweezers, pen and sketchpad, camera, envelops, measuring device the first photographs should provide an overview of as much of the scene as possible then mid-range shots are taken, focusing on the position of the items considered for evidence finally each piece of evidence is photographed in close up detail photographing a body - 5 angles head to feet right side left side feet to head straight down from above then close ups of any wound
 * Things that investigators are looking for are**
 * Purposes of evidence**
 * Crime scene kits**
 * photographing a scene**