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 Posted: Tue Oct 31, 2006 5:20 pm
Ch.1
Warrantless Searches
Probable cause- needs warrant
Consent given
Emergency situation- house is on fire, car accident, etc
Probable loss of evidence
Person is being arrested- they can search place of arrest
Define
Forensics: any part of the legal system where science is used
Rigor Mortis: stiffness of body (12-24 hrs)
Livor mortis: color due to pooling of blood (12-18 hrs)
Algor mortis- body temperature changes 1.5 degrees per hour
Frye vs. US- scientific evidence is generally accepted
Daubert vs. Merrill Dowe- when it has been tested, subject to peer review and publishing, perform error rate, set of standards used to perform test, or generally accepted (3 of 5 needed)
Coppolino vs. State- if test is reliable, it is accepted
Ch. 2
Processing a Crime Scene
Secure scene to prevent loss of and damage to evidence
Photograph scene from outside then inside
Photograph everything- especially evidence that can’t be collected
Search scene
Grid search: large scenes
Line search: large scenes
Spiral search: possible explosives or strange placement of body
Quadrant search: smaller scene
Take notes of what is happening
Description when arrived
Weather that day
List who discovers evidence, when, and who is sketching the scene
Collect evidence
Proper manner- gloves and proper equipment
Placed in an appropriate container
-Fragile evidence in rigid container
-Evidence w/ bodily fluid in porous container- envelope
-Accelerants (flammable liquid) put in non-porous container
-Label containers: Name, date, time, contents
-Seal containers: initials and date on seal
Here's a few weeks of notes from my Forensics Science class! Enjoy!
-Nya
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Posted: Tue Oct 31, 2006 8:00 pm
That's really neat. I always considered taking a Forensics Science class. It's all those murder shows my Mom loves to watch, I swear. Sounds complicated, really. xD
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Posted: Tue Oct 31, 2006 10:43 pm
The amazing thing about all this is I took Criminal Investigation, and learnt all of this, too. I want to get a degree in Forensics(if possible), but I have to wait till I get my AAS Criminal Justice, and be able to transfer to Denver, Colorado.
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Posted: Wed Nov 01, 2006 5:00 am
so these are the standard procedures of forensic search of a crime scene?
thats a lot of work it seems. maybe i'l take this list and see if they do the same in crime scene investigation.
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Posted: Wed Nov 01, 2006 12:41 pm
Most of these are the same no matter what you do. If you're a patrol officer you do the same thing, if required.
It's not just based on/for Forensic Scientist.
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Posted: Wed Nov 01, 2006 1:53 pm
Let me add.
There are many roles within the Crime Scene Investigation teams. As they portray it on CSI(the show) not everyone in the team can lift fingerprints or test for GSR. In most police departments they have 1 or 2 people doing fingerprints for the whole department, and that's the only thing they do, nothing else.
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Posted: Wed Nov 01, 2006 2:36 pm
xinena so these are the standard procedures of forensic search of a crime scene? thats a lot of work it seems. maybe i'l take this list and see if they do the same in crime scene investigation. Yeah, well, they're supposed to. Still, CSI doesn't always get everything quite right, although that was more in the beginning of the show. Sometimes we watch it in class, though, which is really funny. Our teacher works on her computer and pipes up with comments about the show every once and a while. xD -Nya P.S. Glad everyone likes the info! Later this afternoon, I think I'll post some more notes! Yay!
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Posted: Wed Nov 01, 2006 2:39 pm
All right, I lied. Becuase I love you all so much, here ya go:
Chapter 4 & 8 Test
Glass
- Refractive index is velocity of light in a vacuum divided by the velocity of light in a liquid
- Glass disappears when refractive index equals zero
- When 2 glass pieces disappears in the same liquid, same type of glass- class char.
- When a glass piece fits into a broken pane, individual characteristics
- 1st bullet has fractures with other fractures stopped in them
- Entry side of bullet larger than exit
Hair
- If Medullary Index (ratio of the medulla- part of a hair) is less than 1/3, hair is human
- Other animals have larger MI’s
- Hair has no individual characteristics
- Hair has Mitochondrial DNA, which is not unique
Fibers
- Natural~ fibers from plant or animal sources
- Synthetic~ anything artificial~ spandex, etc
- Fiber ID’d by physical, chemical, and optical properties
- Fibers are only as unique as they were made
Paint
- Pyrolysis gas chromatography~ paint chips heated, and their gases are sent through a gas chromatograph.
- Can be unique if enough layers are present
- Emission spectroscopy detects inorganic pigments of paints
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Posted: Wed Nov 01, 2006 3:38 pm
That actually sounds interesting. I wish that they offered that where I go. Unfortunately, they don't. Plus, I probably wouldn't go into that field. I'm more of a biology/math/chem person.
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Posted: Thu Nov 02, 2006 6:07 pm
tickledpink6291 That actually sounds interesting. I wish that they offered that where I go. Unfortunately, they don't. Plus, I probably wouldn't go into that field. I'm more of a biology/math/chem person. I liked chemistry a lot! Of course, having a borderline-pyromaniac as a teacher didn't hurt anything, either. She liked labs and experiments that had to do with fire... ^^ -Nya
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Posted: Wed Nov 08, 2006 1:14 pm
CSI has somehow made that interesting for me... THANK YOU CSI... ninja that show is more addicting than crack ninja
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Posted: Wed Nov 08, 2006 2:27 pm
NeptunianWolf CSI has somehow made that interesting for me... THANK YOU CSI... ninja that show is more addicting than crack ninja I prefer the show "24" ninja
I love how in forensics, they identify a body, just from hair, or teeth, or fingers, etc.
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Posted: Wed Nov 08, 2006 9:20 pm
Well, Fall 2007 I'll be getting an internship with the local CSI, hopefully.
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Posted: Thu Nov 09, 2006 4:49 am
[XxGuardianDevilxX] NeptunianWolf CSI has somehow made that interesting for me... THANK YOU CSI... ninja that show is more addicting than crack ninja I prefer the show "24" ninja
I love how in forensics, they identify a body, just from hair, or teeth, or fingers, etc. SQUEE!!! I love '24'! That show is awesome! It doesn't exactly have anything to do with forensics, but who cares? It doesn't need forensics to be amazing. -Nya
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Posted: Thu Nov 09, 2006 2:56 pm
.theXfallen. [XxGuardianDevilxX] NeptunianWolf CSI has somehow made that interesting for me... THANK YOU CSI... ninja that show is more addicting than crack ninja I prefer the show "24" ninja
I love how in forensics, they identify a body, just from hair, or teeth, or fingers, etc. SQUEE!!! I love '24'! That show is awesome! It doesn't exactly have anything to do with forensics, but who cares? It doesn't need forensics to be amazing. -Nya Actually, there is forensics in that show. In season 1 the bad guys killed this guy. Ripped out his finger nails, and teeth, eyes, etc. so he couldn't be identified. But they forgot to rip out his hair. Voila they identified him. So Jack new that the guy who was escorting his wife was a phony posing as the dead guy.
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