Forensic Science Chapter 2- the crime scene

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The obligation to maintain the integrity of evidence belongs to which of the following?

All of the above

as a matter of routine, all items of clothing are to be ________ before packaged.

air dried

Physical evidence may be obtained from

all of the above 1. the crime scene 2. the victim 3. the suspect

all of the following items may be placed in airtight container except

blood stained clothing

besides the more obvious items of physical evidence, possible ______ of trace evidence must be collected for detailed examination in the laboratory.

carriers

the possibility of future legal proceedings requires that a(n) __________ be established with respect to the possession and location of physical evidence.

chain of custody

photographs of physical evidence must include overviews as well as _____ to record the details of objects.

close-ups

in cooperation with the medical examiner or coroner, what type of evidence is to be retrieved from a deceased victim for examination in the crime laboratory?

clothing, fingernail scrapings, head and pubic hair, DNA vaginal and rectal swabs, recovered bullets from the body, hand swabs for GSR.

in cooperation with the medical examiner or coroner, evidence retrieved from a deceased victim to be submitted to the crime laboratory should include,

clothing, fingernails, head and pubic hairs, blood, etc.

the evidence collector is not concerned with

determining the natural variations that exist in physical evidence.

each item collected at the crime scene must be placed in a(n) container.

different

all unauthorized personnel must be _____ from crime scenes.

excluded

true or false: charred debris recovered from the scene of an arson is best placed in a porous container

false

true or false: scientific evaluation of crime-scene evidence usually can overcome the results of a poorly conducted criminal investigation.

false

true or false: the techniques of physical evidence collection require a highly skilled individual who must specialize in this area of investigation.

false

true or false: an ordinary mailing envelope is considered a good general-purpose evidence container.

false.

an airtight container (is, is not) recommended packaged material for bloodstained garments.

is not

whenever possible, trace evidence (is, is not) to be removed from the object that bears it.

is not

when ______ sets in after death, the skin appears dark blue or purple in the areas closest to the ground

livor mortis

three methods for recording the crime scene are:

notes, photography, sketches.

the term _______ encompasses all objects that can establish whether a crime has been committed or can link a crime and it's victim or it's perpetrator.

physical evidence

most physical evidence collected at the crime site will require the accompanying submission of _______ material for comparison purposes.

reference sample

an investigator need draw only a(n) _______ sketch at the crime scene to show it's dimensions and pertinent objects.

rough

a detailed search of the crime scene for physical evidence must be conducted in a(n) _______ manner.

systematic

The manner of collecting and preserving physical evidence at a crime scene is determined by

the nature of the evidence

The relative evidential value of laboratory test results is almost always dependent on

the way the evidence is collected and presented for examination

true or false: one method for approximating the time of death is to determine body temperature.

true

the most important prerequisite for photographing a crime scene is to have it in a(n) _____ condition.

unaltered


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