Lab 13 Synthesis
1. Explain the difference between:
1. A destructive and a non-destructive blood tests
1. Destructive tests are those that destroy the blood sample and make the
DNA non-testable once the chemicals are applied. This also means that
if the t
Michelle OConnell was a single 24-year-old mother of 4-year-old daughter
Lexi. Her boyfriend was Jeremy Banks, a deputy police officer. Boyfriend made a 911
call on the night of 9/3/10 to report that OConnell had shot herself. She was found
with an intra-
1. Alcohol History
a. Collect family history
b. Research amount ingested regularly
c. Research evidence of binge drinking
d. Research evidence of blackouts (known from friends, family, acquaintances
e. Research evidence of driving under the influence of a
1. Explain how to determine the direction of impact for blood spatter. How do you
calculate the angle of impact? How to you determine the source point of the spatter
1. You determine the direction of impact for blood spatter by finding the tail o
Lab 12 Synthesis
1. When packaging and labeling evidence it is important not to make
assumptions about items because we have no scientific evidence that an item
is actually what it is, like blood, alcohol or drugs. This will skew our
1. List the name of 5 different reagents used in Presumptive drug testing. (i.e.: Marquis
2. Sulfuric acid
3. Ammonium metavanadate ketamine testing, Mandelin test
4. Selenius acid- mecke test
1. What is the acceptable number of parts/insect contaminants allowed in your product?
2. What is the significance of this defect source?
3. What types of insects, insect filth and/or insect damage are asso
1. Tented arch: similar to the Plain Arch except that instead of rising smoothly at the
center, there is a sharp upthrust or spike, or the ridges meet at an angle less than
2. Type lines: are the two innermost ridg
Crime Scene Investigators Report
1. This should say death investigation.
2. The case number should have four numbers after the hyphen.
3. The date should read 01/01/2014 and the time should read 08:00 AM.
4. The investigator should write her full name, no
1. The required reading outlines three main roles that a psychological autopsy
plays in a death investigation. The first role is to determine the mode of death
if the death is equivocal, meaning it is not clear if the death was natural
Lab 8 Synthesis
1. Now that you have fully examined your raisins what do you think was the possible
contaminant present in your raisins? Were your raisins free of contaminants or did they
potentially contain mold, insects or something
Reporting Investigator Allie Robinson was assigned to a death investigation
located at 123 Main St., West Lafayette, Indiana on 01/01/2014. Upon
arrival at 08:00 AM, RI signed the crime scene entry log and spoke with
Officer J. Smith, who advised that he
Lab 6 Synthesis
1. A latent fingerprint is one that is not visible to the naked eye. It is a residual
impression of a persons fingerprint made up of sweat and oil. These can be
left on many surfaces and visualized by many different tec
1. I dont have the manual in person but I can access it online.
2. My cameras minimum close up depth of focus is about 6 inches.
3. My camera has a built in flash so when I want to use it, I raise it up. To change the
1. Describe the importance of fully rolling fingerprints when creating a 10 print card. What
is missing if the rolling technique is not used?
1. If you do not fully roll fingerprints when creating a 10 print card, you can miss
very important characteristi
1. Define the following terms, and identify the types of tools that might leave the defined
type of toolmark (for c-f):
1. 2D impression-Two-dimensional (2D) patterns occur when a pattern impression
lies on the surface classif
1. Ghosting What could have caused this type of pattern?
1. This is when a blood hit a surface and an object was in the way. If the object was
moved, then there will be an outline of the object on the surface that it was in
1. The contamination zone is an area that is set up at the entrance of the crime
scene and it is used to hold all of the investigators equipment and belongings
so as not to contaminate the scene. It can be as small as a cardbo
1. Arriving at the scene
a. Initial scene walk through
b. Set up scene boundaries with caution tape
c. Set up contamination zone
2. Scene sketch
a. Sketch the outside of the scene
a. Take pictures of exterior o
Lab 3 Synthesis
1. What do you do when you have obstacles in the way when working out your perspective
mid- range photographs?
1. When you have obstacles in the way when working out your perspective midrange photographs you have to mov
Lab 2 Synthesis
1. The narrative should be written in third person and it should tell a whole story about
the case. It should tell the who, what, when and where of the scene- who was involved,
what was collected and how it wa
1. The rough scene sketch serves as a detailed overhead view of the scene we
are examining, for our own use and reference. The final scene sketch is much
more official. Because we use a computer program to dra
1. Describe the difference between class features and individualizing features. What were
some causes of individualizing features on your own shoe print?
1. Class features are those that show that an object belongs to a certain class,
either a specific br
1. Why is it fruitless to estimate that a bloodstain is 5.001 cm long when using a
1. It is fruitless to estimate that a bloodstain is 5.001 cm long when using a
standard ruler because the blind eye cannot esti
1. Standard operating procedure written instructions intended to document how to
perform a routine activity.
2. Scene narrative- a written report by initial investigator that tells whole story about
the case including when and