Forensic science, processing a crime scene

7 types of physical evidence collected from a victim/suspect

1 victim clothing, 2 fingernail scrapings, 3 head and pubic hairs, 4 blood, 5 vaginal, anal, oral swabs, 6 recovered bullets, 7 hand swabs

4 methods for conducting systematic search at a crime scene

1 spiral search 2 grid 3 strip/line 4 quadrant/zone

how do you store/preserve charred debri

Seal in airtight container to prevent evaporation

best way to seal/preserve blood stained evidence

in wrapping paper, manila envelopes, paper bags

what is the importance of packaging each piece of collected evidence separately

prevents damage, cross contamination

define chain of custody

a list of all people who came into possession of an item of evidence

why is it important that it pertains to the physical evidence

so it will have the best guarantee to withstand inquiries. so it is the most authentic 

what are standard reference examples

soil, blood, glass, hair, fibers

substrate control

uncontaminated surfaces

what is the process of submitting evidence collected at a crime scene

ship through mail, create a evidence submission form, create a list of items submitted and package separately assign, number or letter

why is safety a priority at any crime-scene 

investigators don’t know of any diseases or hazards that is contained there 

what legal considerations should be followed at any crime scene

Secure the scene, respect constitutional rights, document, evidence collection, chain of custody, legal admissibility standards, warrantless search