the first officer arriving at a crime scene, after providing or obtaining medical assistance for the injured and effecting an arrest of suspects (if possible), should immediately:
secure the scene
the most basic methods of crime scene recording include all of the following EXCEPT:
if the crime scene includes a dead body, the photographer should:
depict injuries and weapons at scene
which statement about note taking is NOT true?
note taking is done after all crime scene processing has been completed
typically, about an hour after death, the a deceased body loses heat at a rate of approximately_____ until the body reaches the environmental temperature
1-1 1/2 C per hour
physical evidence at a hit and run scene could include:
glass fiber, fabric impressions, paint chips, and fiber and tissues
the successful outcome of a criminal investigation is almost always directly related to:
the number of people employed in the crime lab
to determine the gender of skeletal remains, a forensic anthropologist can examine all of the following area of the skeleton except:
a corpse was discovered in an apartment last november. it was hat of 50 year old male who died of a heart attack. at the time of discovery, the body temperature was determined to be 89 F. what is the most probable post mortem interval
the stage of fusion of various bones within a skeleton can be used to estimate the _____ of the decedent
according to forensic entomologists, which "witness" is the first to arrive at the crime scene?
if a cause of death cannot be found through simple observation of the victim a ____ is typically carried out.
evidence of tampering with the position of a body after death can be obtained by evaluating the:
investigators should collect possible carriers of trace evidence which may include:
vacuum sweepings, clothing, vehicles and fingernail scrapings
the crime scene notes must accurately record:
the tasks assigned each investigator, personnel arrivals and departures from the scene, and descriptions of evidence present at the crime scene.
a forensic anthropologist may help to create a ____ to help with the identification of the victim.
estimations of the postmortem interval (PMI0 using entomological evidence must take into account:
the species of insect present, geographical location of the decedents body, the locations climate over time and weather conditions
is the scientist who studies how the person dies, the scientist takes down the notes, sketches, and take the photo
studies how long the blow fly got to the dead body and the time of the death. they also can tell when the blow fly landed on the body
to determine whether a bloodstain is of human or animal origin, the serologist will perform:
a precipitin test
____transport oxygen from the lungs to the body tissues and carry carbon dioxide back to the lungs.
red blood cells
evidence to substantiate that a rape occurred could include:
physicial injuries, blood and semen, hairs and fibers
what is true about the "club drug" Rohypnol?
it can cause drowsiness, dizziness, and loss of consciousness, it is odorless, colorless and tasteless, it results in loos of memory of what happened in the hours after ingestion, it is enhanced when combined with alcohol.
define a chromosome
is when genes are placed on top of a thread like body. Chromosomes are found in the locus
define an antigen
is the type of blood that you have, so you can have A antigen, B antigen, O antigen and AB antigen
who undertook the first definitive study of fingerprints as a method of personal identification?
who devised a technique for determining the blood group of a dried bloodstain, which he applied to criminal investigations?
the ____ unit applies principles and techniques of chemistry, physics, and geology to the identification and comparison of crime scene evidence
which of the following can be rightfully cited as an explanation for the rapid growth of crime labs during the last 25 years?
advent of DNA profiling, increase in drug related arrests, staggering increase in crime rates in the united states, supreme court decisions in the 1960's
in the case of Daubert v Merrell Dow Pharmaceutical, Inc., the U.S. Supreme Court advocated that a "gatekeeper" determine the admissibility and reliability of scientific evidence. this gatekeeper is the:
List the four crime labs set up by the federal governments
FBI, US Postal Inspection Agency, DEA, , Burea of Alcohol, Tobacco, Firearms
the smallest particle of an element that can exist and still retain its identity as that element is the:
which unit has the responsibility for the examination of body fluids and organs for the presence of drugs and poisons?
an element is a chemical that has a name. for example O is an element and its chemical name is oxygen.
what is a compound and give one example?
a compound has more than two elements in it. for example CO2 is carbon dioxide which has carbon and oxygen
what is physical property
physical property is when you change its property but not in chemical way.