The Case of Mary Jane Richelle Pettit. They Call Me Pettit The name’s Pettit, Richelle Pettit. I am a palynologist from the CSI lab in Las Vegas, Nevada.

Slides:



Advertisements
Similar presentations
Flowers Angiosperms Flowers are either male, female or both (complete) Largest group of plants today Reproduce through sexual reproduction and asexual.
Advertisements

P OLLEN AND S PORE E XAMINATION. I NTRODUCTION Pollen and spore information can be used to determine the following: Was the body moved? Where did the.
Plant Growth and Reproduction
Everything You Wanted to Know About Plants…And Then Some
Parts of a Flower 6TH Grade Science.
Introduction to Fibers
Compare and contrast the female and male reproductive parts in plants
REPRODUCTION AND STRUCTURE NOTES
P OLLEN AND S PORE E XAMINATION. I NTRODUCTION Pollen and spore information can be used to determine the following: Was the body moved? Where did the.
REPRODUCTION.
Plant Reproduction.
Plant reproduction Learning Objective;
Trace Evidence (Part I)
Chapter 5 Pollen and Spore Examination By the end of this chapter you will be able to: distinguish between and explain how pollen and spore evidence.
Introduction Forensic palynology—a specialized field that studies pollen and spore evidence Pollen and spores are microscopic reproductive structures that.
Forensic Science: Fundamentals & Investigations, Chapter 5 1 distinguish between and explain how pollen and spore evidence can be used in crime investigation.
Identify the function of specific plant and animal parts.
F ORENSIC P ALYNOLOGY Jaclyn Seelagy Department of Forensic Science at George Washington University.
Trace Evidence. Trace evidence- small pieces of material –Debris from mass produced materials –Abundant in nature.
Flowers Make Fruits & Seeds. Basic Vocab! What is fertilization? The combing of a sperm and as egg to make a seed. What is an ovule? The inner part of.
Plants Review. ___________ is when leaves make food for the plant using water, sunlight, carbon dioxide and chlorophyll. Answer: photosynthesis.
Structures of a Flowering Plant
UNIT 4 The reproduction function TYPES OF POLLINATION Natural Science 2. Secondary Education.
Crime Scene Investigation & Evidence Collection
Pollen Analysis. Pollen and Spores objectives distinguish between and explain how pollen and spore evidence can be used in crime investigation define.
How Do Seeds Form and Grow?
Physical evidence Trace evidence. Small or microscopic materials that can be transferred upon contact – Hair, fiber, paint, glass, plastic, soil and pollen.
Conifer trees grow from seeds. Conifer trees are plants that make seeds using cones!
PLANT/FLOWER STRUCTURE AND FUNCTION MRS. MARITES L. DE LUNA NOVEMBER 9-13, 2015.
SCIENCE. PLANT REPRODUCTION TYPES OF PLANT REPRODUCTION THERE ARE TWO KINDS OF PLANT REPRODUCTION : SEXUAL REPRODUCTION AND ASEXUAL REPRODUCTION. THE.
 are the reproductive organs of plants.  They have male parts and female parts.
Pollination 6th grade science.
Let the evidence speak for itself.
Locard’s Exchange Principle “When a person comes into contact with an object or another person, a cross- transfer of physical evidence can occur.”
Plant Reproduction 3.2 pages Plant Parts: Male Pollen: Anther: Filament: Carries the plant sperm Where the pollen is made The stem of the anther.
The Little Garden By: Mangumpig, NJ Welcome everyone! as you enter to my beautiful little garden, you can gathered more information about plants. Please.
PARTS OF A FLOWER. PEATAL  Petals- petals are brightly colored to attract insects such as bees and butterflies into the flower.  Petals- petals.
Pollen producing plants. Gymnosperms  Have long thin needle like leaves – to conserve water.  Largest group are the conifers – “Christmas” trees  Are.
Plant Reproduction and Development Chapter :1 Asexual Reproduction in Plants Asexual reproduction: When an organism creates offspring that are IDENTICAL.
Xiang Fei Lin SBF5-03 M. Villani Oct. 07, 2010
Physical and biological evidence. Evidence can be classified as Physical or Biological. Physical evidence usually comes from a non-living origin and includes.
Forensic Science: Fundamentals & Investigations, Chapter 5 1 Chapter 5 Pollen and Spore Examination By the end of this chapter you will be able to: o Distinguish.
Plant Reproduction Stages of Plant’s Life Cycle? 1. Sporophyte stage- plant produces spores(seeds) 2. Gametophyte stage- plant produces sperm cells & egg.
Topic 9: Plant Science 9.3 Reproduction in Plants.
Pollination.
Forensic Science 4.4 Microscopic evidence.
Distinguish between pollen and spores Define a pollen fingerprint
Forensic Botany Ahmed Belghith.
Unit 5B: Life Cycles Life Cycles T Unit 5B: Life Cycles.
Parts of a Flower.
Happy Monday! You will need these supplies today: Colored pencils
Structure and Function of Parts of a Flowering Plant
Plants SOL 4.4.
Sexual Reproduction in Flowering Plants Monday, 23 July 2018
DESIGN A FLOWER Design a Flower is a module to teach students about pollination, the structures involved in pollination and the different animals that.
What occurs during pollination in a plant’s life?
Who remembers when the science test is??????
Aim: Reproduction in Flowering Plants
Susan Martin 7th grade Science
Locard’s Exchange Principle
Structure and Function of Parts of a Flowering Plant
Flowers.
Crime Scene Scenario Imagine the following: Scene:
Parts of a Flower 6TH Grade Science.
Chapter 5 Pollen and Spore Examination By the end of this chapter you will be able to: distinguish between and explain how pollen and spore evidence.
FLOWER DISSECTION 2017.
Trace Evidence.
Flowers.
Flowers and Reproduction
Pollination By noriska remedios. What are we going to learn Parts of a flower Types of a flower Pollination Process of pollination Ways of pollination.
Presentation transcript:

The Case of Mary Jane Richelle Pettit

They Call Me Pettit The name’s Pettit, Richelle Pettit. I am a palynologist from the CSI lab in Las Vegas, Nevada. I graduated from UCLA with my doctorate in Palynology and a minor in Studliness. I have currently done investigations for Lil’ Wayne, Lindsay Lohan, and Barack Obama. I am known as the brightest young palynologist in the country.

Pollen The fine powder like material consisting of pollen grains that is produced by the anthers of seed plants. It is produced in the microsporangium of the plant, also known as the anther. The pollen for each kind of tree or flower is distinctive to that species, so there is no definite description for what pollen in general looks like - the grains aren't even all round; the size also varies. Pollen is microscopic in most cases. It looks like tiny little yellow grains. There are certain seasons when pollen is produced. The pollen has to be mature. Pollen’s function is to reproduce. It can be transferred by wind, animals, or water. Pollen is distinct to every plant.

Marijuana and Pollen Marijuana pollen looks green or brown and has a hairy appearance. It is microscopic. Marijuana plants produce an abundance of pollen because they are wind pollinated.

Locard’s Principle Locard’s Principal states that contact between individuals and locations leads to an exchange of trace evidence. Marijuana plants transfer pollen by wind transfer. Pollen can also fall off of the plant and be left behind. Pollen is distinct to the plant it is from, which can tell the location and possible times of the crime.

Pollen in the Case There was indeed a large quantity of marijuana pollen found in this apartment. My team, “New Directions”, collected the evidence while wearing gloves and using tape. We transported the pollen to our lab and carefully examined it under a microscope. The pollen looked brown and fuzzy and had a distinct appearance matching marijuana plants.

Conclusion My background in palynology and minor in studliness gave me enough information to prove that marijuana was found in this apartment…and a lot of it at that! These college students have been smoking and selling more marijuana than Michael Phelps after the Olympics!

Another case closed for Pettit…Richelle Pettit!

Works Cited " Bongs, waterpipes, glass pipes, smoking accessories - Grasscity.com." Bongs, waterpipes, glass pipes, smoking accessories - Grasscity.com. N.p., n.d. Web. 8 Dec < "Forensic Palynology: A New Way to Catch Crooks." Welcome to Crime and Clues. N.p., n.d. Web. 8 Dec "Material policial, placas de policía, insignias militares y equipamiento policial y táctico. Material para el vigilante de seguridad y escolta privado. Portaplacas de policía.." Material policial, placas de policía, insignias militares y equipamiento policial y táctico. Material para el vigilante de seguridad y escolta privado. Portaplacas de policía.. N.p., n.d. Web. 8 Dec < "Pollen - Wikipedia, the free encyclopedia." Wikipedia, the free encyclopedia. N.p., n.d. Web. 8 Dec "University of Massachusetts Amherst." University of Massachusetts Amherst. N.p., n.d. Web. 8 Dec comparison. "Cannabis (drug) - Wikipedia, the free encyclopedia." Wikipedia, the free encyclopedia. N.p., n.d. Web. 8 Dec