CSI | -DSP85I-P | Name Date CSI: The Experience – Case #2 Canine Caper Go to www.

Name _______________KEY_____________________ Date _____________________
CSI: The Experience – Case #2 Canine Caper
Go to www.forensics.rice.edu and click on Case # 2 – Canine Caper.
GETTING TO KNOW THE GAME
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In each room, you can talk with a character by clicking on him or her.
Explore a room by moving the mouse around and finding interactive objects to click on.
To change rooms, click on the location tab at the bottom and click where you want to go.
Before leaving a location, click on the CSI agent again to check if you are finished there.
GRISSOM’S OFFICE
Click on Grissom. Click on each question and read the answer.
What happened? murder and possible dog-napping
Where did it happen? Las Vegas Dog Show
What tools will you need? PDA and Field Kit
Who will be assisting you? Grissom himself
Remember to pick up the PDA and Field Kit on the desk.
RANGERS RV
Click on Deborah Ranger. Click on each question and read the answer.
What kind of dog is Apollo? Cocker Spaniel
Who is the deceased? Marco Williams – Ranger’s dog handler
When did she last see him alive? between 10 - 11
Besides the characters, there are 7 other interactive objects.
Click on the piece of paper near the sink. What is it? Prescription for Apollo
Click on the folder.
Worksheet created by Susannah M. Comfort - Teacher at Snell Farm Campus School, Bath, NY
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Find 4 pieces of evidence and write them down along with the method you will use in the lab to examine it.
Evidence
1. notepad
How to examine it. ex. light table, toxicology station
light table
2. dog food
toxicology station
3. spoon
fingerprint station
4. hair
comparison microscope
Click on the wadded piece of paper on the sofa. What is it? Apollo’s daily schedule
Click on Deborah Ranger again to ask her about the wadded up piece of paper.
Who is a person of interest to remember? The competition veterinarian
Click on Grissom. Click on question, are we finished here? This will unlock a new room, the morgue.
CSI MORGUE
Click on Dr. Robbins.
What was the cause of death? blunt force trauma to the forehead
What was the time of death? less than 5 hours ago
Click on the cut on the forehead.
Find 3 pieces of evidence and write them down along with the method you will use in the lab to examine it.
Click on the puncture wound on the neck. How will you analyze the blood? toxicology (1 piece of evidence)
Click on the bitemark on the arm. How will you preserve the bitemark? photograph (2 pieces of evidence)
Evidence
How to examine it. ex. light table, toxicology station
1. blood
toxicology station
2. bite mark picture
light table
3. unknown DNA from saliva on bite wound
DNA station
Worksheet created by Susannah M. Comfort - Teacher at Snell Farm Campus School, Bath, NY
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CSI LAB (FIRST VISIT)
There are 7 pieces of evidence to be analyzed. Click and then drag the evidence to an appropriate station
(when the evidence glows yellow, it means you can analyze that evidence there) and follow the instructions
to complete the analysis.
Process the victim’s blood at the Toxicology Station.
What is a positive control? A sample that purposely contains a certain drug.
Why is each test duplicated? To help ensure no mistakes are made.
What drug is in Marco Williams’ blood? barbiturates
What type of barbiturate was found? Sodium Thiopental
What is another name for this drug? “Truth Serum”
Did Mr. Williams have enough of this drug in his body to kill him? yes no
Process the Bitemark Saliva at the DNA Station
No two individuals have the same exact DNA markers except identical twins
Follow directions to search CODIS and match the DNA profiles. (Drag each of the three possible CODIS
matches to the right area and click on CONFIRM MATCH, so that you can complete the activity.
Was there a match in the CODIS?
yes
no
What are you going to do next? Collect DNA samples from suspects for comparison.
Process the bitemark Photo at the Light Table.
To measure the bitemark, we use a ABFO No. 2 scale
What is the width of the bitemark? (across from left to right) 4 cm
What is the height of the bitemark? (top to bottom) 3.5 cm
Click on SEE EXAMPLES to determine if this bitemark is human or canine.
What type of bite mark is it? human
Process the notepad at the Light Table
What tool will reveal the indented markings on the notepad? Electrostatic Detection Apparatus (ESDA)
Can more than one layer on a notepad be readable with this technique? yes
no
Worksheet created by Susannah M. Comfort - Teacher at Snell Farm Campus School, Bath, NY
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Follow the steps to analyze the notepad.
There are two messages on the notepad, what do they say?
1. Call Ranger before meeting with Murphy at 12:30 (refuse his job offer)
2. To do list – buy more tickets – grocery shopping
Which one is newer? #1 The meeting note
Process the spoon at the Fingerprint Station
What method are you going to use to check for fingerprints? Superglue Fuming Method
Follow the steps to process the spoon for fingerprints.
Drag the fingerprint to the screen and click SEARCH.
What is the name of the database for fingerprints? Integrated Automated Fingerprint Identification System
(IAFIS)
Drag each fingerprint to the screen and click MATCH
Whose fingerprint was it? Wesley Murphy – Dog breeder
Why was he fingerprinted on October 6, 2000? Arrested for drunk driving (DUI)
What did you learn from the fingerprint comparison? Someone named Wesley Murphy left his fingerprints
on a spoon at the crime scene.
How did this person’s fingerprints get into the database? He was arrested in 2000 for drunk driving (DUI)
What technique did you use to develop the fingerprints? Superglue Fuming Method
Process the dog food at the Toxicology Station.
What does the food smell like? almonds This smell is a sign of what poison? cyanide
Follow the steps to process the dog food.
Assuming there is cyanide in the dog food, can you predict the color change in all the wells?
The positive control and the sample will be blue.
What does the positive control tell you? The positive control tests detects cyanide.
Why didn’t the extraction buffer liquid change colors? The extraction buffer doesn’t contain cyanide.
What does the experiment tell you about Apollo’s dog food? It contained cyanide.
Worksheet created by Susannah M. Comfort - Teacher at Snell Farm Campus School, Bath, NY
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Process the unknown hair and the Comparison Microscope.
Label the three parts of a hair:
cuticle
medulla
cortex
Focus the hair under the microscope. Click on each type of lighting. Look at the pictures and read.
Direct lighting is lighting from underneath. It reveals the inner structures of the hair.
Oblique lighting is lighting from the side, not underneath. This lighting highlights the cuticle or surface of the
hair.
Click on SEE EXAMPLES, Click on SEE EXAMPLES of each question.
What is the scale pattern of the cuticle? imbricate
What type of medulla does this hair have? absent
The hair found at the crime scene is a human hair.
Is there a follicle tag attached to the hair root? yes
Is there any Nuclear DNA in this hair to test? yes
no
no
93% of hairs that contain mitochondrial DNA.
Read about Nuclear DNA and Mitochondrial DNA.
What did you learn from this unidentified hair? The hair is from and unknown human.
What characteristics did you look at? scale pattern and medulla
What should you do next? Find a suspect that has a similar hair sample.
Click on Greg and then “I think I am done here” to unlock two locations, Vet’s Office and Murphy’s RV
Worksheet created by Susannah M. Comfort - Teacher at Snell Farm Campus School, Bath, NY
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RANGER’S RV (SECOND VISIT)
Click on Deborah Ranger, click on each statement to her and use your tools to collect evidence from her.
What three pieces of evidence did you collect from Ms. Ranger?
1. hair sample 2. DNA sample 3. bite impression
Click on Grissom and then “I think I’m done here.”
VET’S OFFICE (FIRST VISIT)
Click on Dr. Knox, click on the questions and read the answers.
That did she say about the dog? He was always sick
What does she want before she will allow you to collect evidence from her? search warrant
Use luminal to spray the trash can. Was trace blood detected? yes no (Use arrow to the right to close)
After you use the luminal, the picture on the wall will straighten. Use the swab to collect a blood sample off
the wall by the picture.
What kind of evidence is the blood on the swab? trace evidence
There are two more clickable objects (not the characters), what are they?
bottle of sodium thiopental and cell phone
(Remember when a picture comes up on the screen and you can’t see the location you are in, you have to
click the arrow to your right to exit that picture.)
Click on Grissom and click “I think I am done here” and “I’ll select our next location”
MURPHY’S RV
Click on Murphy, click each question, read the answers.
What time were Murphy and Williams supposed to meet? 12:30
Why were they meeting? Murphy offered Williams a job
Use luminal to spray suspicious areas like the counter or the dog cage.
Any trace evidence found? yes no
There are two clickable objects in the room (not the characters), what are they?
a bottle of rat poison and the dog (it barks)
Worksheet created by Susannah M. Comfort - Teacher at Snell Farm Campus School, Bath, NY
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Click on Murphy. What does he use poison for? to kill rats
Why were his fingerprints on a spoon in Ms. Ranger’s RV? He wanted to make Apollo sick so he poisoned
him.
Use your tools to collect two pieces of evidence from Murphy.
What two pieces of evidence will you collect from Murphy? DNA sample and bite impressions
(Using your observation skills) – Why didn’t we collect a hair sample from Murphy? He’s bald
CSI LAB (SECOND VISIT)
There are 7 pieces of evidence to be analyzed. Click and then drag the evidence to an appropriate station
(when the evidence glows yellow, it means you can analyze that evidence there) and follow the instructions
to complete the analysis.
Drag Ranger’s bite impression to the Light Table
Bite marks are not as unique as fingerprints or DNA
However, they can be used to rule out a suspect
Follow the steps to make a cast of Rangers top and bottom teeth.
Are Deborah Ranger’s teeth a match to the victim’s bitemark? yes no
Drag Ranger’s hair sample to the Comparison Microscope.
Follow the steps to analyze Ranger’s hair. Does Ranger’s hair match the unknown sample? yes no
Drag Murphy’s bite impression to the Light Table. Repeat the same steps to make a cast of Murphy’s top
and bottom teeth. Click “Do it myself”
Are Murphy’s teeth a match to the victim’s bitemark? yes no
Drag the Trace Blood evidence to the DNA Station
Follow the steps to analyze the trace blood. Is it animal or human blood? Human blood
Compare the DNA profile of the trace blood to the victim’s blood. Does it match? yes no
What did you learn from these DNA profiles? Marco Williams’ blood is in the vet’s office
How do you know? The DNA profiles were identical
Who is our Number One suspect now? Dr. Sariel Knox – Veterinarian
Worksheet created by Susannah M. Comfort - Teacher at Snell Farm Campus School, Bath, NY
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Click the PDA and read the message from Lt. Jim Brass. What did Brass get that will help collect evidence
from Dr. Knox? Search warrant
VET’S OFFICE (SECOND VISIT)
Click on Dr. Knox. Click on, “I have a warrant to collect evidence.”
What 3 pieces of evidence will you collect? Hair sample,
Bite impressions, and DNA
Use your tools to collect the 3 pieces of evidence.
CSI LAB (THIRD VISIT)
Drag Knox’s hair to the Comparison Microscope. Is it a match to the unknown hair? yes no
What should you do next? I have to run a mitochondrial DNA (mtDNA) test to confirm it
Drag Knox’s bite impression to the Light Table. Repeat the same steps to make a cast of Knox’s top and
bottom teeth. Click “Do it myself”
Do Knox’s teeth match the bitemark on the victim? yes no
So who caused the bitemark on Marco Williams’ arm? Sariel Knox probably bit him
How can we confirm this? We can match the bitemark saliva DNA to Knox’s DNA
Drag Knox’s DNA to the DNA Station. Choose Unknown Hair. Read about the process of mtDNA extraction
and complete the steps to analyze Knox’s hair using Mitochondrial DNA (mtDNA).
What were the results of the mtDNA test on Knox’s hair? This is probably Knox’s hair
Drag Knox’s DNA back to the DNA Station and click on Unknown DNA.
Compare the DNA of Knox to the unknown DNA found in the saliva on the bitemark of the victim.
Does Knox’s DNA match the DNA found on the victim? yes no
What did you learn from the DNA test? It is conformed that Knox bit Mr. Williams
Click on the PDA and read the message from Grissom. Click on the attachment and drag the correct clues
to the glowing boxes to answer his questions. You can click on each picture and read the description first.
What evidence shows that the suspect was at the crime scene? Knox’s hair at the scene
Who has access to the drug found in the victim’s body? Sodium Thiopental at Vets
Who bit our victim before his death? Knox’s DNA on Bitemark
Worksheet created by Susannah M. Comfort - Teacher at Snell Farm Campus School, Bath, NY
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Where did the death of the victim most likely occur? Victim’s Blood at Knox’s
Click SUBMIT ANSWERS. When you get them all correct, you will automatically be taken to the
interrogation room.
INTERROGATION ROOM
Click on Dr. Knox. Read the conversation and how it all happened.
Congratulations, you have solved the case. What was Dr. Knox charged with? manslaughter
Where was Apollo? With the SPCA
Was Apollo returned to Deborah Ranger? yes no
What happened to Wesley Murphy? He was banned from all competitions
NICE WORK!!!
Worksheet created by Susannah M. Comfort - Teacher at Snell Farm Campus School, Bath, NY
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