Forensic Botany Flashcards
trade of protected species
illegal wildlife trade & the persistence of ‘plant blindness’
forensic biology - damage
can look at timelines based on the damage of plants
source of wood
associative evidence - locations, people, objects
forensic example of damaged botany
grass under car isn’t dead even though it was said to be there for 46 days
forensic examples of source of wood
- looks at wood chips in head to see if they match bat used
- fake antiques
- took marks in wood
plant secondary metabolites as source of drugs & poisons
- help protect the plant from disease
- structural function
- toxic surface to prevent leaves from pests
- unintentional/ intentional
Ricin
- poisonous glycoprotein
- inactivates ribosomes in human cells
determining the source of drugs derived from plants
- region supplying
- DNA analysis
- ID insects/pollen
- stabel isotopes/trace alkaloids
forensic palynology
study of pollen & spores to inform legal investigations
when forensic palynology is used
- seasonal
- timing
where forensic palynology is used
- geographic region
- habitat
pollen
carries male gametes of flowering & cone bearing plants
spores
-the asexual reproductive bodies of ferns, mosses, fungi
- think sperm
special forensic aspects of pollen
- can get DNA from pollen
- highly resistant to decay
what do plants produce?
vast quantities of microscopic pollen & spores which they disperse with the help of animals, wind, and water
what is natures fingerprint of plants?
pollen
forensic pollen studies
- rarely attempted in the US
- attempts in cold cases where the potential pollen evidence has been compromised by time & contamination
current problem with forensic pollen studies
- there are very few people who are trained to do forensic pollen studies
- no jobs for people who are trained
- very few training programs
The OJ Simpson Case
- forensic pollen evidence would have been very useful but was not employed
- evidence suggested that the murderer hid among flowering bushes in front of the Simpson home waiting
- if so, a pollen ‘fingerprint’ would have been left on the suspects clothing and would have linked the kille r