excellent to study crimes
Chain of custody
a written document that can account for an item of evidence from the time it came into an agency's possession to the time it is presented in court
a record of events as they occur at the scene of a crime
used for recording evidence in detail
body of a crime; essential elements
facts are recorded
crime scene sketches and photographs
assist jurors in understanding the case
individualization of physical evidence in a crime lab; also referred to as a forensic science
defense asks for disclosure of the police case against his or her client
the searching officer starts at the outskirts of the crime scene and works toward its focal point
the searching officer starts at the focal point of the scene or the center of the security area and works outward by circling in a clockwise or counterclockwise direction until the fringes of the protected area are reached
locard's exchange principle
involves the cross transfer of evidence; primarily hairs and fibers
basic record of the search and the evidence discovered
known standard of evidence
evidence collected from a known source
shows the locale, approach route, a hallway, 2 connected rooms
10-20 ft. pinpoint a specific object of evidence or segment of the crime scene
most favorable term in a crime lab report of a comparison analysis of evidence submitted by police investigators
involves the choice of a particular crime to commit and the selection of a method of committing it
a method of contacting people in the area of a crime scene to locate potential witnesses
neutralize the crime scene
making the crime scene safe for other personnel to enter the area
following a chain of objects that are obviously evidence
preliminary investigative report
basic information collected from a crime scene
witnesses' tendency to adopt information from other witnesses' as their own or alter their recollections to fit with those of other witnesses
silent witness program
seeks information but offers rewards and confidentiality
assist in locating evidence but do not collect it
strip or grid search
outdoor areas; the area to be searched is plotted like a football field. Searching starts at a sideline and goes to the other sideline and is kept up until the search is complete.
disappear from a crime scene
how many people may have saw the crime
zone or sector search
crime scene is subdivided into segments and each sector is searched as an individual unit
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