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Monday 12 March Topic: Lipstick & Lip prints

OBJECTIVE: You will be able to describe the components of lipstick and explain which can be analyzed from a lip print. Monday 12 March Topic: Lipstick & Lip prints. DO NOW: Explain the difference between insole and outsole. When is each useful for evidentiary analysis?

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Monday 12 March Topic: Lipstick & Lip prints

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  1. OBJECTIVE: You will be able to describe the components of lipstick and explain which can be analyzed from a lip print. Monday 12 MarchTopic: Lipstick & Lip prints DO NOW: Explain the difference between insole and outsole. When is each useful for evidentiary analysis? What is a latent print? Identify some types of trace evidence that can be found on footwear. HOMEWORK: Create a template that is user friendly for identifying lip prints

  2. OBJECTIVE: You will be able to describe the components of lipstick and explain which can be analyzed from a lip print. What is lip stick? • Composition has changed throughout history • Used to be made from smooshed beetles and ants with ground fish scales to make it shiny!! • Current lipsticks go into 1 of 4 main categories (various ingredients contribute to appearance): • Matte / creme • Sheer/ long lasting • Glossy • Shimmery

  3. OBJECTIVE: You will be able to describe the components of lipstick and explain which can be analyzed from a lip print. Lipstick composition • ALL contain waxes, oils, antioxidants, and emollients • MATTE / CREME: • Matte has more filling agents but not many emollients • Crème has more waxes than oils • SHEER / LONG LASTING • Contain lots of oil (long lasting has silicone oil) which helps seal color to wearer’s lips

  4. OBJECTIVE: You will be able to describe the components of lipstick and explain which can be analyzed from a lip print. Lipstick composition • ALL contain waxes, oils, antioxidants, and emollients • GLOSSY: • Contains the most oil to give a shiny appearance • SHIMMERY: • May contain mica, silica, fish scales, and/or synthetic pearls to give a glittery appearance

  5. OBJECTIVE: You will be able to describe the components of lipstick and explain which can be analyzed from a lip print. Lipstick as evidence • How well do you think lipstick holds up in court? • Works by EXCLUSION ONLY

  6. OBJECTIVE: You will be able to describe the components of lipstick and explain which can be analyzed from a lip print. Lip Prints! • 3 things to analyze from a lip print • Any lip stick or lip gloss  Can determine brand • Lip pattern  5 main print patterns • DNA from saliva  ideal for a lip print analysis

  7. OBJECTIVE: You will be able to classify your own lip print pattern, as well as identify similarities and differences among other lip prints in order to describe the accuracy of lip prints as evidence. Thursday 15 MarchTopic: Lipstick & Lip prints DO NOW: Describe the difference between type II and type III lip prints. What are the 3 components of a lip print that can be analyzed? Explain what it means for evidence to be by exclusion only HOMEWORK: Finish lab analysis questions  due MONDAY (quiz on footprints and lip prints will be Monday as well)

  8. OBJECTIVE: You will be able to classify your own lip print pattern, as well as identify similarities and differences among other lip prints in order to describe the accuracy of lip prints as evidence. Procedure • Put lipstick on LIPS while being professional • As neatly and smudge free as possible, make an imprint on the provided index card • Once you have a clean print, you’re free to remove the lipstick • Adhere the index card to your lab, and answer the questions

  9. OBJECTIVE: You will be able to classify your own lip print pattern, as well as identify similarities and differences among other lip prints in order to describe the accuracy of lip prints as evidence. Exit ticket • How easy or difficult did you find it to categorize the lip prints into one of the 5 types? • What came out of this lab that you were expecting? • Describe which aspect of the lab surprised you.

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