Forensics Event Case Background Evidence

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Forensics Event Regional Science Olympiad 2013 UWM Starting Time Finish Time School/Team Name Team Member (s) Score /100 Rank Case Background Tangled Up with Pascal, the number one Best

He was staying at the hotel with his breeder getting ready for the Annual Westminster Dog Show being held at Madison Square Garden next weekend. Suspicion immediately fell on four people.

The third suspect is another Bernese Mountain dog owner, Bert Bernard and the last suspect is the chairman of the Westminster show, Tom Bradley.

A partial fingerprint was found on the door to the room (Station 1) and sent to the lab for comparison with the suspects.

1 Forensics Event Regional Science Olympiad 2013 UWM Starting Time Finish Time School/Team Name Team Member (s) Score /100 Rank Case Background Tangled Up with Pascal, the number one Best in Breed, Bernese Mountain Dog in the country was stolen from his hotel room in the The Carlton Hotel on Madison Avenue in New York. He was staying at the hotel with his breeder getting ready for the Annual Westminster Dog Show being held at Madison Square Garden next weekend. Suspicion immediately fell on four people. Iris Love, the owner of the Pekingese named Malarkey, who was last year s Best in Show winner. Secondly, Gigi, the nationally renowned dog groomer to the rich and famous. The third suspect is another Bernese Mountain dog owner, Bert Bernard and the last suspect is the chairman of the Westminster show, Tom Bradley. Evidence The police evidence technicians arrived at The Carlton Hotel in the afternoon and collected several pieces of evidence. A partial fingerprint was found on the door to the room (Station 1) and sent to the lab for comparison with the suspects. A sample of the ink from a ransom note was sent to the lab for identification (Station 2). A white powder was collected from the dog cage, where Pascal was possibly drugged before being stolen. (Station 3). Hair and fibers were found all over the room. (Station 4) Investigators found several a set of blood drops were found in the sink (from an apparent dog bite wound) which was sent to the lab to be blood typed.(station 5).

Possible Suspects The investigators have identified the following suspects. Iris Love: Fingerprint: The 2012 Best in Show winner, with her Pekingnese and is hoping to win this year with a sibling.

Wears a wool skirt in the show ring and has a black hair and light brown dogs.

She has been fighting an ant problem at her shop and is currently in a temporary facility due to the pesticide exposure.

2 Possible Suspects The investigators have identified the following suspects. Iris Love: Fingerprint: The 2012 Best in Show winner, with her Pekingnese and is hoping to win this year with a sibling. She has recently sprained her ankle and is treating it with Epsom salt soaks. Has blood type O- and uses a EF Felt Tip black pen with an Rf value of the fastest moving molecule of Wears a wool skirt in the show ring and has a black hair and light brown dogs. Gigi : Fingerprint: A nationally known dog groomer, she is well known for seeking out the best dogs for Hollywood movie stars. She has been fighting an ant problem at her shop and is currently in a temporary facility due to the pesticide exposure. Has blood type A + and uses a Visa Vis black pen with an Rf value of the fastest moving molecule of.96. Wears a cotton apron while grooming and has a blonde hair and a cat. Bert Bernard: Fingerprint: He owns the number 2 reserve Bernese Mountain dog. He is well known in the dog world for his homemade baked dog cookies. Has blood type B- and uses a Papermate black pen with an Rf value of the fastest moving molecule of.68. Wears a nylon sports jacket in the ring and is bald and owns a brown, black and white dog. Thomas Bradley : Fingerprint: Supervisor of the Westminster Dog Show for the last 10 years but wants to give up his post to manage Church hill Downs. Has high blood pressure. Has blood type AB+ and uses a Liquid Flair black pen with an Rf value of the fastest moving molecule of Wears a polyester suit and has a grey hair and owns horses.

Testing the Evidence: Go to each lab station and complete the investigation. You have 45 minutes to complete all the tests and write up your final report.

3 Testing the Evidence: Go to each lab station and complete the investigation. You have 45 minutes to complete all the tests and write up your final report. Remember that the blood and qualitative analysis takes the longest, so you re your time wisely. There should only be one team per station. Station 1 - Fingerprint Analysis ( 10 points) a. Use the fingerprints provided by each suspect and those found the door to the hotel room: Which suspect most likely left this print? (2 points) b. Identify and name the 3 ridge characteristics circled on this suspect print. (3 points) c. If a latent fingerprint needed to be lifted using Ninhydrin, what does it react with in the print to turn it purple? (1 points) d. Identify the general fingerprint classification of each of the suspect prints.(1 point each) Iris Love Gigi Bert Bernard Thomas Bradley

Station 2 Chromatography (15 points) Directions: Analyze this chromatogram. This was ink taken from the ransom note. It ran for 5 minutes using water as a solvent a.

4 Station 2 Chromatography (15 points) Directions: Analyze this chromatogram. This was ink taken from the ransom note. It ran for 5 minutes using water as a solvent a. How many different size molecules does the ink from the crime scene note have? (2 points) b. What is the Rf value of the fastest moving molecule from the ink found at the crime scene? (3 points) c. Which suspect s pen most likely was used to write the ransom note? (2 points) d. What does Rf stand for? (3 points) e. Using this mass spectrum of an element, How many isotope (s) does this element have? (2 points) What is the identity of this element? (3 points)

5 Station 3 Qualitative Analysis (20 points) Directions: Use your lab equipment and the chemicals provided to determine the name of the white powder found by the cage. The samples were taken from each suspects hotel room.(2 points a question) Possible white powders are: sodium acetate, sodium chloride, sodium hydrogen carbonate, sodium carbonate, lithium chloride, potassium chloride, calcium nitrate, calcium sulfate, calcium carbonate, corn starch, glucose, sucrose, magnesium sulfate, boric acid and ammonium chloride. USE small amounts of the powders (size of a q-tip head) and mix in a microwell plate- the results for the many of the tests has been given to you already You could use this table to organize your test results: (you don t have to do all the tests, just suggestions) Test performed! Benedicts Conductivity Solubility In Water HCl NaOH Lugols Flame Test ph Powder #1 (Lois Love) Powder #2 (Gigi) No reaction No reaction Weak conductor Weak Conductor soluble NR Does not dissolve Yellow soluble NR dissolves Yellow Powder #3 (Bert Bernard) Powder #4 (Thomas Bradley) Powder #5 (crime scene) Red brown on heating Turns green No reaction Very weak conductor Conducts well Weak conductor Not soluble NR lumpy Blue black soluble NR dissolves Yellow soluble NR dissolves yellow (2 points each) a. What is the identity of powder #1 found with Lois Love? b. On what basis did you make the ID of powder #1? c. What is the identity of powder #2 found in Gigi s Room? d. On what basis did you make the ID of powder #2? e. What is the identity of powder #3 found in Bert Bernards room? f. On what basis did you make the ID of powder #3? g. What is the identity of powder #4 found with Thomas Bradley? h. On what basis did you make the ID of powder #4? i. What is the identity of powder #5 found in the dog cage at the crime scene? j. On what basis did you make the ID of powder #5?

Station 4- Fiber and Hair Analysis (Polymers Test)

ones at the station), fill in the data table.

1 pt each) (human, dog, cat, bat or horse) ( 1 pt

point) What is the inner canal of the hair shaft

6 Station 4- Fiber and Hair Analysis (Polymers Test) (20 points) Hair: Use the images provided (colored ones at the station), fill in the data table. Hairs found in hotel room Medulla Index Identity ( 1 pt each) (human, dog, cat, bat or horse) ( 1 pt each) A B C What type of scale pattern is this (1 point) What is the inner canal of the hair shaft called?(1 point) What suspect(s) could have left this? ( 1 pt each)

Fiber: (use 1 thread, the tweezers and a candle for the tests) Flame Test Results ( 1 pt each) Identity

( 1 pt each) A Fiber in hall B Fiber in hall C Crime scene fiber Station 5 Blood Analysis (5 points) a.

7 Fiber: (use 1 thread, the tweezers and a candle for the tests) Flame Test Results ( 1 pt each) Identity (cotton, wool, silk, linen, nylon, polyester) ( 1 pt each) What suspect(s) could have left this? ( 1 pt each) A Fiber in hall B Fiber in hall C Crime scene fiber Station 5 Blood Analysis (5 points) a. Use the blood typing kit and anti-a and anti-b and anti Rh serums to blood type the blood found on the broken glass at the scene. Use 2-3 drops of blood and 2-3 drops of the anti-serums and Rh factor to check for agglutination (clotting) Type of Blood (3 points) b. Which suspect(s) most likely left this blood? (2 points)

8 Analysis of the Crime (30 points) Determine who the culprit(s) of the crime were by analyzing all of the evidence. For each piece of evidence include who is a suspect(s) and who is eliminated and the reasoning for each. Don t forget to explain the identity of the white powder from dog cage and the pen that wrote the ransom note with evidence gained in your experiments.(20 points) Describe 2 possible sources of error in your analysis and describe 2 other forensic techniques/tests that could be applied to verify your results.(10 points)

9 Forensics Event Science Oympiad UWM a. Gigi 2pt Whorl 1pt 1b Top -ridge ending Middle- bifurcation Bottom - spur 3 pts 1c. amino acid/protein 2pt 1d whorl whorl loop arch 4pt 2a 4 2 pts 2b 0,96 3 pt 2c Gigi 2pts 2 d rate of flow 3 pts 2e 5 2pts Zirconium 3 pts 3a magnesium sulfate 2pt 3b soluble, boils off water,etc conducts 2pt 3c boric acid 2pt 3d ph=4,green flame 2pt 3e corn starch 2pt 3f lugols- blue black benedicts-red when heated 2pt 3g potassium chloride 2pt 3h purple flame, conducts, dissolves 2pt 3i boric acid 2pt 3j ph=4,green flame 2pt 4a >1/2 cat Gigi 3 pt 4b ~7/8 DOG any of them 3 pts 4c absent human blonde Gigi 3 pts 4 imbricate 1pt medulla 1 pt 5a A+ 3 pts 5b Gigi 2pt Analysis: Suspect-Gigi Rf match, blood match Need to Explain why 20 pts Fingerprint match Boric acid- white powder -ant Eliminated- Bert, Thomas, Iris Errors- describe other tests- describe 10 pt

10 Answer Key

Palmyra Macedon Invitational Forensics

Palmyra Macedon Invitational Forensics PLEASE PRINT NEATLY!! NAMES: SCHOOL: ------------------------------------------------------------------------------------------------------------ Part I: Qualitative