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crime scene management
teamwork approach of investigators and crime scene personnel that successfully resolves a case
crime scene map
using techniques associated with surveying to obtain data that can be used to generate a 3D rendering and record of the scene
crime scene reconstruction
analysis and reconstruction of a crime scene that logically links a detailed series of scientific explanations to provide an understanding of the sequence of events
crime scene security
practices used to secure a crime scene and to keep unauthorized persons away to protect the scene integrity
crime scene sketch
rough drawing used to document a crime scene
crime scene survey
rapid initial study of the crime scene or areas suspected to be a crime scene
first responding officers
first person arriving at a crime scene; usually a law enforcement officer or other emergency personnel
macroscopic crime scene
overall or “big picture” crime scene
microscopic crime scene
crime scene description based on the type of physical evidence present
primary crime scene
description of a crime scene based on the location of the original criminal activity; the original scene
secondary crime scene
crime scene location after the original or primary crime scene
videography
recording the scene using continuous video (usually digital)
walk-through
preliminary crime scene survey performed to orient the crime scene investigator to the scene and the physical evidence at the scene
“W’s”
acronym for who, what, when, where, and why; questions associated with a crime
securing the scene, conducting walk-through, documenting the scene, searching for & documenting evidence, collecting & preserving evidence, & analyzing the evidence all while maintaining a chain of custody
What are the basic steps of scientific crime scene investigation?
information, manpower, technology, logistics
What are the four components of crime scene management?
traditional, crime scene technicians, major crime squad, lab crime scene scientist, collaborative team
What are the five crime scene investigation models?
to secure the scene and ensure no unauthorized personnel tamper with or contaminate any potential evidence, as well as apprehend and separate witnesses
Discuss the duties of the first responder at the crime scene.
ensuring maximum evidence preservation by creating and outer perimeter to control general access, a secondary perimeter for more controlled entry, and an inner core where only essential personnel can access the immediate scene
What is the multilevel approach to crime scene security?
note-taking, videography, photography, & sketching
What are the components or tasks of crime scene documentation?
done immediately following videography after the initial walkthrough; every photo taken must be recorded in photo log
What is the basic process for photographing crime scenes?
rough & polished
What are the two basic types of crime scene sketches?
link, line/strip, grid, zone, wheel/ray, spiral
What are the six types of search patterns used in crime scene investigations?
to obtain evidence, document & describe it using detail, identify it, package it properly in both a primary and secondary container with full details of evidence collector and of evidence
What are the general guidelines for the collection, packaging, and preservation of physical evidence?
data collection (collection of all evidence) , conjecture (interpret evidence) , hypothesis formation (analyze evidence in context of case) , testing (test if evidence’s interpreted cause or inference matches the facts) , theory formation (form reconstruction)
List and discuss the stages of crime scene reconstruction.
to begin the mental image for reconstruction and note all obvious pieces of evidence
What is the purpose of a walkthrough?
wrap it in a Druggist’s fold, then into a secondary container such as an envelope or packet, then seal with a tamper resistant tape before marking with info about the item
How would you package a single hair recovered from a scene?
