Harford District 2015 Cub Scout Day Camp June 22-26 CSI: Crime Scene Investigation Station Volunteer s Guide
Thank you for being a station volunteer! The stations are the heart of camp and truly provide our scouts with an opportunity to try out a new skill (or build on one they know) while having a great time. Our volunteers knowledge and enthusiasm is what makes our camp great! To make running the station easier, please take some time to read through the station guide. While, what is being covered at the station needs to remain as outlined so that the scouts earn the correct achievements, how it is covered is only one of many methods. If you find a better way to accomplish the requirements or if the method we have outlined doesn t seem to be working please feel free to change it! This is only a guide do what works best for you and the scouts coming to your station. One other thing to keep in mind some stations will be visited by all ranks. That means you may have 6 year olds through 11 year olds and may have to simplify or intensify the methods to meet the skills and knowledge of all the scouts. Thanks again we are glad to have you as part of Harford Day Camp! Station Procedures The first station begins at 10:15 on Monday and 9:15 other days so you have some time! We ve tried to only schedule 2 dens at a time (max. 24 boys) but, there may be times when you have 3. Consult your station schedule so you will know who to expect and when. Greet dens as they arrive. Many will have a den cheer, ask to hear it! Once all the dens arrive or the start time has come, begin going through the procedures for the station. It is very important that you start and end on time! Each time slot lasts 45 minutes. If a den arrives 10 minutes late, they CANNOT stay 10 minutes past the end of the station that would make you and them late for the next station. If a den doesn t get finished, suggest they come back during a break or take the remaining activity with them to work on at the den. Execute the station with energy and enthusiasm! Let the scouts do as much for themselves as possible. It doesn t need to be perfect, they just need to Do Their Best! Don t forget the beads. Each scout earns a bead at every station for participating. Beads can be given to the den leader for distribution. Once the den is finished, begin resetting for the next group. Close the station at the end of the day by packing/organizing the supplies and cleaning and disposing of all trash. Let the Program Director responsible for the station (either Tiger/Wolf/Bear or Webelos) know if supplies are running short! ~ Page: 2 of 5 ~
Station Overview Discussion and hands-on activities will complete this station. This is a hands on active station. Experiments are meant to be fun and help enhance our investigative theme. Each scout will view the demonstrations and then complete ## of (experiments). Watch the time and have scouts rotate to another station after about 7or 8 minutes. While the scouts are recording their observations, leaders can prep for the next group. Containers can be emptied and reused for the next group. Set-up: Open station boxes and lay out materials for each activity. When a group is done, clean materials and set out clean/new materials for the next group. Activity 1: Lifting Latent & Patent Fingerprints glass slides, CD cases, ceramic tiles, cocoa powder, baby powder, small cups, tape, small brushes, red paint, paper plates, unlined index cards, pieces of black card stock, magnifying glasses, fingerprint charts, paper towels, cleaner. (Put small amount of baby powder and cocoa powder into cups for scouts to dip their brushes into. Put some red paint (blood) onto paper plates for scouts to dip their fingers into.) Activity 2: Impression Evidence: Negative & Positive Prints paper, carbon paper, stapler/staples, bicycles, magnifying glasses, tape, sand, dirt, buckets, cups, quick-dry plaster of paris, craft sticks. Water will also be provided to mix. Scouts should bring their own boxes. Have the plaster of paris measured out into cups so the scouts can add the water. Mix 2:1 ratio as directed on bag. Dirt/sand should be pre-mixed with a small amount of water in the buckets provided before the dens begin. Activity 3: Shoe print identification game several shoes, plaster shoe casts. Can be done if there is time when Activity 1 & 2 are both completed. There may not be enough time for this and that s ok. Break-Down 1) Tightly seal all containers and return to bins. 2) Carefully place all materials into bin for re-use the next day. 3) Please assure that all bins are closed tightly and place under the tent for the night. 4) In the event that rainy weather is expected, please take the bins into the Crouse building for the night. ~ Page: 3 of 5 ~
Station Objectives: Each scout will learn how to collect a few types of evidence that gets collected in a crime scene investigation and discuss how these bits of evidence can help catch a criminal. Demonstration: Show the whole group what will be accomplished. Say something like Welcome to our Crime Scene Investigation class. We will be learning about a few things that Crime Scene Investigators to do at a Crime Scene to collect evidence. Two of the most popular things you see Investigators gathering on shows like CSI are Fingerprints and Impression evidence. You will learn to collect this kind of evidence here. Direct the scouts attention to the piece of clear glass on the table that you have already touched to ensure there are fingerprints on it (make sure your fingers had some sweat or body oil on them before touching the glass, this will make the best print). Ask, What do you see on the glass? They will tell you nothing. Sprinkle a small amount of powder on the glass where the finger print is located. Gently brush or blow away excess powder, being careful to leave the exposed fingerprint(s) intact. Place a piece of clear tape on top of the powdery print, then lift the tape (the fingerprint should have stuck to it) and place it onto a piece of black construction paper so they can see it more clearly. After the oohs and aahs, tell them that our skin produces natural oils which leave behind a residue when our fingers touch or press against a surface or object. This residue of our fingerprints is called a latent print. The powder sticks to these oils, making visible the unique pattern made by the ridges on our fingertips. No two people have the same fingerprint patterns. Ask them, How do you think this is useful for me as a detective? Proper answer, If I was looking for someone s fingerprint at the crime scene, and if this glass was at the crime scene, I d have enough evidence to possibly arrest them. This experiment is called pulling latent prints off objects. The other kind of fingerprints are called patent prints. Those are the kind that have been made by blood, paint or, motor oil, or something else that has substance. These are easier to find and collect. Another kind of evidence is called Impression Evidence. This kind is taken from tracks made by shoes, tires, tools and lots of other things. This kind of evidence can help to build a profile of a suspect or exclude someone from a pool of suspects. We ll be investigating shoe print and tire imprint evidence here. Divide the Dens up into two groups. You should have 2 volunteers helping at this station. Explain what each group will be doing. ~ Page: 4 of 5 ~
Activity 1: Lifting Latent & Patent Fingerprints Latent Prints: Press your finger (always use this same finger) on each of the 3 materials given (glass slide, plastic CD case, metal). Gently shake some baby powder over your thumbprint, and blow or dust off the excess. Make sure you don t blow the talcum or baby powder into your eyes. Smooth a piece of sticky tape over your print and peel it off carefully. Stick the tape onto a labeled piece of black paper. Repeat with the other latent prints. Which material was it easiest to get a print from? Patent Prints: Dip your finger into the red paint (not too much) and make prints on the glass slides. Let dry then try to lift the print off with tape. Was it easier than lifting latent prints? Activity 2: Impression Evidence - Negative & Positive Prints Shoe Print Impression: Everyone should have a shoe box or similar. Dirt/sand & water should be mixed prior to scouts coming in. Give each scout enough mixture to fill their container about 1 2 inches deep. Have the scout put one foot into the container and put his full weight onto it, then remove. Did the shoe make a good print? Add more dirt if the mixture was too sloppy to hold a print. Prepare plaster of paris in the cup provided and gently pour into the print. Let it dry while the next part of the activity is being done. Go back to this when tire print is over and see if it is ready to take out. Tire Printing: Put a piece of carbon paper in between 2 pieces of white paper carbon side up and attach together with a stapler. Have the scouts put their papers on the ground and each take a turn riding a bicycle over the paper. If possible, let the scouts do the other bicycle too. Take the paper apart and look at the prints. Label the prints for each bicycle and tire. List your observations: Width, pattern, other characteristics or unique marks. Activity 3: Shoe print identification game (just for fun). Don t worry if there isn t time for everyone to play this game. Several different shoes will be provided and a few impressions made by a shoe in the collection. Have the boys try to match up the right shoe with the impressions. Scouts should take home their fingerprints, plaster impressions and tire prints. ~ Page: 5 of 5 ~