Forensic Science exam short answer
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