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2 Parts assigment is included..Read well and let me know in casePart 1. Do the lab and completly the documents attachedPart 2. Do the Discussion Assigment and answer to students discussion
laboratory_instructions.docx

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LABORATORY INSTRUCTIONS
The “Ballistics and Spatter Lab” is the next lab in our course and it requires
that you have a firm understanding of the material you learned in 2.12 and
2.13. Overall, you are given spatter and ballistic evidence from an incident that
occurred in the small (fictional) country, Fenwicka. The government has
released a statement about what occurred when an assailant entered the
offices of the prime minister. You have been asked to serve as the expert and
are to review the evidence to see if you agree with the reconstruction of the
government.
There are two main parts of the lab – in the first part (2.14) you will look at
spatter evidence; and in the second part (2.15) you will analyze the ballistics
evidence. For each part, there is important information you need to print:
Evidence Pack (used in both parts); Lab Instructions (Part 1)
Lab Instructions (Part 2)
When you work through the blood evidence (2.14), you will follow the
directions in the lab instructions and will find all of the evidence you need in
the evidence pack. The lab instructions indicate you need a protractor and a
ruler, but you do not need these supplies. You will definitely want to reference
your notes from 2.12 (Trauma and Blood Spatter) as you work through this
part of the lab.
When you tackle the ballistics evidence (2.15), you will use the evidence pack
and an online comparison program that is directly in lesson 2.15. Keep in mind
as you work through 2.15 that the bullets and casings do not have to have a
match. Again, the lab instructions indicate you need a protractor and a ruler,
but you do not need these supplies. You will want to reference your notes from
2.13 (Ballistics) as you work through this part of the lab.
For the entire lab, keep careful notes and make sure to fill in the lab
instructions as you work through the assignments.
Completing the lab involves two components – 2.15 LAB and 2.15 Discussion
Assigment.
DISCUSSION ASSIGMENT
2 PARTS DISCUSSION
PART 1. Answer the following questions
Answer each question, using complete sentences
1. Reconstruct the Insurrection Crime. Include the following in your response:



A step-by-step reconstruction of the events from the time the intruder entered the outer office to the time
the soldiers reported the crime. Describe who killed whom, including the weapons used.
Support each step in your reconstruction with evidence. Include blood spatter and ballistic evidence, as
well as the autopsy results.
State any inconsistencies between your reconstruction of events and the official version of events.
Answer:
PART 2
Answer the discussion of the following 2 students in correct and respect way
Student 1: Elizabeth Lipscomb posted Nov 6, 2017 6:15 PM
Okay, so here’s my reconstruction of events based on the evidence we were given and some creative thinking to
fill in the blanks:
During the insurrection, a few protesters slip through the gates and get inside the building. Two armed assailants
(let’s call them Bonnie and Clyde for the sake of keeping track of “who’s who”) enter the Prime Minister’s inner
office when he is alone, standing in front of his desk. They are carrying the two 9 mm handguns responsible for
his fatal injuries.
As Bonnie and Clyde enter the room, one of them shoots the PM in the chest from a distance. This is evidenced
by the size of the chest wound found during the autopsy. The shot produces shell casing 15 and bullet 17 (aka the
ballistic evidence that didn’t match anything in the database). He staggers back and collapses into the chair
behind his desk, then the other person approaches and shoots the PM in the head at close range. This causes
the burn marks found above his temple during the autopsy. It also produces shell casing 14 and bullet 18. Bonnie
and Clyde flee the scene, but the gun used to shoot the PM in the head gets left behind.
Flash forward an undetermined amount of time later, the deputy is in the outer office. No one has seen the inner
office yet because the deputy is soon attacked by a new assailant. New Assailant (NA) slashes the deputy’s throat
and stabs him in the chest with a downward swinging motion four times. All this produces blood spatter 2, 3, 6, 7,
and 8. NA tracks blood into the inner office, leaving blood spatter 4 and 5.
NA moves to kill the PM only to discover he’s already dead. Soldiers A and B arrive, assuming NA is the only
killer, and Soldier A quickly fires his AK-47 three times. This produces bullets 10, 11, and 12 and the three shell
casings shown at marker 16. The soldiers check on the PM and see he’s actually been shot to death. Perhaps
panicking at this mistake, one of the soldiers takes NA’s knife, slashes the PM’s forearms (leaving blood spatter
20), and places the knife and gun by NA.
The official statement released by Fenwicka’s government is inconsistent with the reconstruction because it didn’t
mention the evidence that suggested two shooters, the fact that the PM was already dead when NA arrived, or
that the soldiers tried to cover their mistake.
Student 2:
Kyle Van Tonder posted Sep 21, 2017 4:03 PM
An armed man entered the prime ministers outer office. He killed the deputy first with 4 violent stabs to the chest.
The angles show the stabs went downward. Then he shot the prime minister twice, once in the head and once in
the chest. he was shot from a distance because the bullet went into his head going down wards. two soldiers
came into the office and shot him three times in the chest. but by that time the prime minister was already dead.
Science | Laboratory Instructions | Laboratory: Ballistics and Spatter, Part 1
Laboratory Instructions
Laboratory: Ballistics and Spatter, Part 1
Materials
Supplied



Laboratory Instructions
Laboratory Guidelines
Evidence Pack
Also Needed


metric ruler
protractor
Optional

scientific calculator
Safety

Review the Laboratory Guidelines before conducting the lab.
Overview
An insurrection occurred in the small country of Fenwicka (a fictional country). A large number of protesters
gathered at the gates of the presidential office building. While the presidential guards and soldiers of the
Fenwickan army tried to keep people out, a few protesters slipped by the gates and entered the building. Soldiers
pursued the intruders. However, one man was able to enter the prime minister’s office.
The prime minister and his deputy were both killed before soldiers shot and killed the assailant. The president and
the defense minister survived. The news of the killings prompted the soldiers at the gates to fire into the crowds.
The protesters fled. Later, several civilians were found dead.
You are part of an international team of forensic scientists that has been called in to investigate the Fenwicka
Insurrection incident. For this lab, you will examine the following information to reconstruct the events:





Official state version of events
Crime scene sketches (with notes)
Crime scene photographs (with notes)
Autopsy results
Comparison microscope images
In Part 1 of the lab, you will examine blood evidence. In Part 2, which you will find in the next lesson, you will
examine ballistics evidence.
Part 1: Blood-Spatter Evidence
Procedure
Review the Evidence Pack
1. If you haven’t done so already, print the Evidence Pack. You will find a transcript of the official state version of
the events on the first page.
2. Locate the Crime Scene Sketches. You will need to have these sketches on hand throughout the lab. There
are three sketches:

Crime Scene Sketch 1: Prime Minister’s Outer Office
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Science | Laboratory Instructions | Laboratory: Ballistics and Spatter, Part 1


Crime Scene Sketch 2: Prime Minister’s Inner Office
Crime Scene Sketch 2a: Prime Minister’s Inner Office (Desk Area)
Each sketch has notes that were recorded at the crime scenes. Review the sketches and the notes. Compare
them to the official state version of events. (Tip: It may help to view the sketches while you play the online audio
of the events.)
3. Using the legend on the sketches, note the location of all blood evidence.
4. Locate the Crime Scene Photos (Blood Evidence) in the Evidence Pack. You will find photos from both the
outer and the inner offices. Study the photos and compare them to the blood evidence on the sketches.
Review the notes about the blood evidence.
5. Locate the Autopsy Results in the Evidence Pack. Note any additional blood evidence.
Examine the blood-spatter data
Use the photos, sketches, and autopsy results to complete the tables below.
Outer Office
Blood
Evidence
Spatter Pattern (passive,
projected, transfer,
arterial, cast-off)
Velocity
(low,
medium,
high)
Whose Blood?
(PM, D, A)
Likely Cause of Pattern
Spatter Pattern
(passive, projected,
transfer, arterial, castoff)
Velocity
(low,
medium,
high)
Whose Blood?
(PM, D, A)
Likely Cause of Pattern
1 blood pool
2 west wall
3 north wall
4 bloody
footprints
5 blood trail
6, 7, 8 east
wall
Inner Office.
Blood Evidence
9 blood trail from
outer office
10, 11, 12 west
wall
13 blood trail
from attacker
17, 18 north wall
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Science | Laboratory Instructions | Laboratory: Ballistics and Spatter, Part 1
Blood Evidence
Spatter Pattern
(passive, projected,
transfer, arterial, castoff)
Velocity
(low,
medium,
high)
Whose Blood?
(PM, D, A)
Likely Cause of Pattern
19 blood spatter
on desk
20 east wall
21 bloody knife
Analyze your Results
6. What is the angle of impact in the blood trails? Why were the drops in the blood trails elongated?
7. With the information presented so far, can you hypothesize the sequence of events? If so, write it down.
This is the end of the blood-spatter analysis. You will complete the ballistics analysis in the next lesson.
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Page 3 of 3
Science | Laboratory Instructions | Ballistics and Spatter 2
Laboratory Instructions
Laboratory: Ballistics and Spatter, Part 2
Note: These are the Laboratory Instructions when using the text version of the Ballistics Comparison Tool. If you
are able to use the Flash version of the tool, you do not need these instructions.
Materials
Supplied
Laboratory Instructions
Laboratory Guidelines
Evidence Pack
Ballistics Comparison Tool (text version)
Also Needed
metric ruler
protractor
Optional
scientific calculator
Safety
Review the Laboratory Guidelines before conducting the lab.
Overview
An insurrection occurred in the small country of Fenwicka (a fictional country). A large number of protesters
gathered at the gates of the presidential office building. While the presidential guards and soldiers of the
Fenwickan army tried to keep people out, a few protesters slipped by the gates and entered the building. Soldiers
pursued the intruders. However, one man was able to enter the prime minister’s office.
The prime minister and his deputy were both killed before soldiers shot and killed the assailant. The president and
the defense minister survived. The news of the killings prompted the soldiers at the gates to fire into the crowds.
The protesters fled. Later, several civilians were found dead.
You are part of an international team of forensic scientists that has been called in to investigate the Fenwicka
insurrection incident. For this lab, you will examine the following information in order to reconstruct the events:





Official state version of events
Crime scene sketches
Crime scene photographs (with notes)
Autopsy results
Comparison tool images
In Part 1 of the lab, you examined the blood evidence. In Part 2, which you will complete in this lesson, you will
examine ballistic evidence.
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Science | Laboratory Instructions | Ballistics and Spatter 2
Part 2: Ballistic Evidence
Bullets
Get Crime Scene Sketch 2 from the Evidence Pack. Your team has collected several bullets from the north and
west walls of the prime minister’s inner office as evidence.
Recall that the Fenwickan army soldiers use an AK-47 7.62 mm assault rifle. The AK-47 rifles of the soldiers (A
and B) who shot the assailant in the prime minister’s office were taken for evidence and test-fired. The handgun
allegedly found in the hand of the assailant in the prime minister’s office was a Glock 17 9 mm handgun. That
Glock 17 handgun was also taken for evidence and test-fired.
Get the text version of the Ballistic Comparison Tool. Compare the bullets taken from the north and west walls of
the prime minister’s inner office to the test-fired bullets. Record your final results in this table.
Evidence
Bullet Number
Soldier A (AK-47)
Soldier B (AK-47)
Handgun (Glock 17)
10
11
12
17
18
Casings
Look again at Crime Scene Sketch 2. Note the location of the casing evidence (14, 15, and 16).
The AK-47 takes 7.62 mm by 39 mm cartridges. The Glock 17 handgun takes 9 mm by 19 mm cartridges
(sometimes labeled 9 mm Luger). Casings from Soldier A, Soldier B, and the handgun were collected when the
guns were test-fired.
Use the text version of the Ballistic Comparison Tool to compare the evidence casing to the casings from Soldier
A, Soldier B, and the handgun. Record your final results in this table.
Evidence
Casing Number
Soldier A (AK-47)
Soldier B (AK-47)
Handgun (Glock 17)
14
15
16a
16b
16c
Analyze
1. Whose gun killed the assailant? What evidence supports your conclusion?
Answer:
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Science | Laboratory Instructions | Ballistics and Spatter 2
2. Which gun was used to kill the prime minister? What evidence supports your conclusion?
Answer:
3. Were there any inconsistencies in the ballistic evidence? If so, what were they? Write your evidence down.
Answer:
Distance and Path of Bullets
Study the Autopsy Results from the Evidence Pack. Focus on the bullet wounds and the results of the gunpowder
residue. Then answer the following questions.
1. Was the assailant shot from close range or from a distance? Write down your conclusions.
Answer:
2. Was the prime minister shot from close range or from a distance? From what direction was he shot? How
many times was he shot and how many people shot him? Write down your conclusions.
Answer:
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Science | Laboratory Instructions | Ballistics and Spatter 2
Reconstruct the Events in the Prime Minister’s Office
1. Based on the evidence you have analyzed, write down the sequence of events that happened in the prime
minister’s office. Who killed whom and with what weapons? State the evidence for your conclusions.
Answer:
2. Compare your sequence of events with those of the official version. Are they consistent or inconsistent? If
there are any inconsistencies, write them down. Provide a possible explanation for the inconsistencies.
Answer:
When you have finished, go online to complete the assessment for this lab. Then proceed to the threaded
discussion board, where you will post your reconstruction of the crime.
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Page 4 of 4
Science | Evidence Pack | Laboratory: Ballistics and Spatter
Evidence Pack
Laboratory: Ballistics and Spatter
This Evidence Pack contains the following pieces of information:




Transcript of Official State Version
Crime Scene Sketches with Notes
Crime Scene Photographs with Notes
Autopsy Results
You will need to refer to this information throughout Part 1 and Part 2 of this lab.
Transcript of Official State Version
Here is the official version of events, given to newscasters by the Fenwickan government. You can listen to the
audio version online in the Case Study activity.
Transcript
An assailant killed the prime minister and his deputy during an insurrection.
As soldiers guarded the presidential office building during the insurrection, an armed man managed to enter the
prime minister’s outer office. He apparently stabbed and killed the prime minister’s deputy. He entered the prime
minister’s office. While the prime minister sat at his desk, the assailant shot the prime minister twice with a
handgun, hitting him in the chest and head.
Two soldiers entered the office and shot the assailant three times in the chest. The assailant collapsed where he
stood with the handgun still in his hand.
The soldiers called for medical assistance. The prime minister was already dead. His body was removed from the
scene and taken to a military morgue for subsequent autopsy and examination. The bodies of the assailant and
prime minister’s deputy were also taken to the morgue.
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Science | Evidence Pack | Laboratory: Ballistics and Spatter
Crime Scene Sketch 1: Prime Minister’s Outer Office
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Science | Evidence Pack | Laboratory: Ballistics and Spatter
Crime Scene Sketch 2: Prime Minister’s Inner Office
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Science | Evidence Pack | Laboratory: Ballistics and Spatter
Crime Scene Sketch 2a: Prime Minister’s Inner Office (Desk Area)
Crime Scene Photos: Blood Evidence
Outer Office
See Crime Scene Sketch 1
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Science | Evidence Pack | Laboratory: Ballistics and Spatter
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Science | Evidence Pack | Laboratory: Ballistics and Spatter
Inner Office
See Crime Scene Sketches 2 and 2a.
Autopsy Results
The following are autopsy results from the deputy, the assailant, and the prime minister that are relevant to the
crime.
Deputy
Blood type: A positive
Description of wounds: The deputy had four stab wounds in the upper part of the chest. The wounds were
angled upward, indicating that the attacker stabbed in thrusts downward. The deputy’s throat was slit completely
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Science | Evidence Pack | Laboratory: Ballistics and Spatter
across from side to side below the larynx. The cut had penetrated halfway through the neck, severing both carotid
arteries and the trachea.
Assailant
Blood type: B positive
Description of wounds: The assailant had three holes in his chest. The entrance wounds were on the right side
of the chest between the ribs, and the exit holes were on the opposite sides. The holes appeared to have been
fired at an angle of zero degrees or parallel to the floor. Each wound was 7.5 mm in diameter and looked like this:
The assailant’s hands were swabbed and tested for gunpowder and primer residues by chemical tests and by
scanning electron microscopy/energy dispersive X-ray analysis (SEM/EDX). None of the tests found any traces of
gunpowder or primer residue on the assailant’s hands.
Prime Minister
Blood type: O positive
Description of wounds: The prime minister had two slashes, one across the middle of each forearm. The
slashes were perpendicular to the bones. He had one gunshot wound in his che …
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