FORECSICS EZAM REVISTION Flashcards
who attends the crime scene and their role
FOA – First police officer at the scene
Backup police
District attorney
Paramedics
Detective
Medical examiner
Photographer
what are the 7 s’s
Secure the scene
Separate the witnesses
Scan the scene
See the scene
Sketch the scene
Search for evidence
Secure and collect evidence
search patterns
spiral, grid, linear, quadrants or zones
where is dna contained in hair?
the follicle
natural fibers charecristics
Natural fibers come from plants and animals
All types of natural fibers have cuticles
Examples: Cotton and Hemp
types of prints
loops, whorls and arches
types of shoe imprestions
patent vs latent vs plastic
information obtained from shoe imprestion
the type of shoe
why can teeth help identify a peritrator
teeth can identify
Position of teeth
Distance between them
Evidence of dental work
Wear patterns
Bite mark
how many chromosomes are in a cells (human)
46
complementary base pares
c,g t,a
advantages of DNA as forensic evidence
Advantages
Small sample required
DNA found in all cells
Accurate
Everyone has unique DNA
disavanteges of dna as forensic evidance
Disadvantages
Contamination
Storage
DNA degrades over time
what evidence is used for estimating time of death
bugs, stage of body
why is toxicoligy used
to find poision
