Chapter 2: Crime Scene Investigation

Triangulation

The process of finding a distance to a point by calculating the length of one side of a triangle, given measurements of angles and sides of the triangle formed by that point and two other reference points.

Crime scenes

________ and archaeological sites are made up of the physical remains of past human activity and, in a sense, are snapshots of the "leftovers "of a completed process.

Latex

________ or natural rubber gloves resist mild acids, caustic materials, and germicides.

Face shields

________ can offer better protection when there is a potential for splashing or flying debris.

survey

The ________ is an organizational stage to plan for the search.

Safety glasses

________ and goggles should be worn when handling biological, chemical, and radioactive materials.

Decontaminate equipment

________ after use with a solution of household bleach diluted 1: 10, 70 % isopropyl alcohol, or other disinfectant.

Polyvinyl chloride

________ is resistant to alkalies, oils, and low concentrations of nitric and chromic acids.

respiratory irritation

Immediate ________ or trauma might ensue when these contaminants are inhaled; some airborne contaminants can enter the bloodstream through the lungs and cause chronic damage to the liver, kidneys, central nervous system, heart, and other organs.

Provenance

The origin and derivation of an item in three-dimensional space, in relation to a datum and other items.

Datum

________- a fixed reference point for all three dimensional measurements.

Artifact

A human-made or modified portable object.

Nitrile gloves

________ provide protection from acids, alkaline solutions, hydraulic fluid, photographic solutions, fuels, aromatics, and some solvents.

Neoprene gloves

________ offer protection from acids, solvents, alkalies, bases, and most refrigerants.

bloodborne pathogens

The increase in ________ and other pathogens that may be encountered at crime scenes has made law enforcement and CSIs more aware of personal protection when responding to crime scenes.

50mm

Photograph the crime scene in an overlapping series using a wide-angle lens, if possible; ______ lenses are the standard issue for cameras-use both and lots of film.

safety glasses

Contact lens users should wear ________ or goggles to protect their eyes.

Crime Scene

The center of the forensic world, where everything starts, and the foundation upon which all subsequent analyzes are based.

Feature

A non-portable artifact, such as a fire pit, a house, or a garden