Forensic Science exam short answer

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ninhydrin

+ amino acid = purple-blue print

cyanoacrylate

+ amino acid = white print

iodine fuming

+ carbohydrates = brownish print

silver nitrate

+ chloride = black print under UV light

first responding officer

eyewitness accounts

analyze case study of carlo ferrier in the text. list the physical evidence observed at the crime scene, and describe its significance in solving the crime

ferrier's body = significant evidence because it showed he died from violence

transporting the body in a closed body bad

fingerprint, dust, pollem

placing a plastic bag over the hand of the deceased before transporting the person's body to the morgue

fingerprints, blood, fluids

personality traits and habits

happiness, lifestyle --> eat, exercise, sleep, values

outline the steps in taking a ridge count from a fingerprint

imaginary line from delta to core count # of ridges between core and delta

what are the laws in you state regarding texting or phoning while driving?

they will be fined

identify the break in the following chain of custody.

when she removed the signature of the original crime-scene evidence collector

is it possible to alter fingerprints?

yes, because in 1930 dillinger burned his fingertips to change its appearance

what are some of the reasons people give as to why they text or phone while driving?

-believe they can multitask -feel it's alright to text/phone when at a stoplight -say its important or an emergency

using the information from the text about observation skills, give two reason that would convince a friend that using a cell phone while driving is a dangerous sistuation

-can't focus on two things -harsh punishment and accident

summarize methods used by forensic scientists to ensure that no evidence is overlooked

-look at everything systematically -view everything -gather all info -no prejudice

evidence collection team

evidence collected at scene

an evidence collection log was completed and tped to each of the evidence bags. what did he do incorrectly?

an evidence collection log was completed and taped to each of the evidence bags. what did he do incorrectly?

brushing the clothing of the victim with a clothes brush

blood, dust, fibers

he sketched the approximate location of the chair and the desk. what did he forget to do?

distance scale and north sign

taking nail clippins from the deceased

dust, pollen, fibers

blood type is considered to be class evidence. although it may not specifically identify the suspect, explain how it still could be useful in helping to investigate a crime.

it raises the accuracy and likelihood of suspect by showing which blood group

describe why two people might perceive a crime scene in different ways

level of interest, stress, concentration, amount & kind of distraction

age

maturity, level of education, independence

photographer

pictures of a crime scene

family status

relationships with others, living situation, responsibility

sketch artist

sketch of crime scene and suspect

occupation

social class, salary, work ethic


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