AllStars CSI
Posted on August 20, 2007
Filed under 07 AllStars, AllStars, School Events, Science
A baffling crime puzzled the police until they called in the investigative minds of the AllStars! Along with Lisa from the CSIRO, the AllStars became real life Crime Scene Investigators as they:
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tested blood samples,
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compared finger prints,
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took footprint plasters,
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looked at DNA,
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compared hair samples,
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looked at oils found at the scene,
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checked bullet casings,
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and used chromatography to compare pens used.
“We had to look at the evidence that was left behind at the crime scene to work out who was behind a blackmailing plot, and the theft of $200 000 from a safe. There were four suspects who had been identified, but all protested that they were innocent. It was our job to look through the evidence and eliminate or prove a suspect guilty.”
Comparison of Hair: We had to look at samples under the microscope - the sample found at the scene and the suspects. Two of the suspects hair looked the same as the evidence hair. Celia
Comparison of Fabrics: We compared fabrics from the suspects, with a piece of fabric found on a chair at the crime scene. First we swirled the fabric in some water, then we dropped a few drops of indicator onto the piece of cloth. We left it for 2 minutes and then we compared the colours to see if it matched the evidence fabric. Sokeina
Soil Analysis: We had to put some soil samples in a dish and compare them to soil from the crime scene. We dropped a small amount of soil in the dish, then added indicator on top. The indicator turned a different colour according to the acidity of the soil. Each soil sample turned a different colour - but only one matched the soil from the crime scene! Nadine
Identikit Face: We had to memorize the description of a man seen at the crime scene and build a picture of the person’s face using a computer program. We had to make the picture look exactly like the picture of the man seen at the crime. Tyrone
Ballistics: We took the bullet found in the sofa at the crime scene and looked at it under the magnifying glass. We then had to try and spot identical markings on bullets from the suspects guns. We were able to find a match from one of the suspects guns. Marshall
Chromatography: this is when we drew a line on a small sample of paper and put it in water. The colours in the ink seperated and we had to match the ink from the pen used to write the blackmail letter. Gloria & Natalie
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Well Allstars you will now be able to perhaps solve all of those ‘Lifes Little Mysteries’ that happen in our school community. Forensics has become such an important facet of police work and by your comments such a fascinating area.
Ms Leonard
Well who did it?? After all that research and examination of the evidence using forensic science you must have solved the crime! Are any of you considering a career in forensic science? What characteristics do you think you’d need to be good at this kind of work?
Mrs D
Hi allstars,
looks like you have been busy!
Sandy looks like she is having a great time with you!
bye!!
I hope you had fun doing your crime blood testing ect. It looks like Sandy had a great time too. He looks very cute in the pictures. I hope you had fun!
Nicole
I’m really glad that you are taking loads of photos with sandy and shes taking part in fun things that you are doing.
BYE !!!
You must have good memories to remeber what the man looks like.
Sandy is very involved in the crime investagtion.
Hi allstars hope you all are had a good summer. I am glad sandy has got on good with you.
Hi Allstars,
I never knew sandy was a detective, he never seamed like one.
sandy looks like a cool detective.
sandy looks like a good detective we got a husky called husky and a duck and rabbit they help with our learning
Allstars I really like your blog it has got lots of things on it. Your blackmailing plot is really a good post. I really like sandy we have got a Husky called Husky and a duck and a rabbit. Sandy looks really funny in the 5th piture.
Sandy looks like a real cool detective and real funny as well. Just think of all of the lifes you’ve saved.
Hi Allstars it look’s like you’ve been working a lot.
And I realy like the toy animal you’ve got.
Hi Allstars I relly like yore blog it is very cool.
Hi Allstars. Im Christina and I come from New Zealand. I think that it would be cool to become a CSI, even if was only for a while! I really enjoy reading your posts. It sounds like you have fun at school!
Jayson- By the way the “toy animals” name is Sandy the Otter. She was a present from our blogging friends the Sandaig otters in Scotland.
Hi Max thanks about our blog, What have you been doing in class?
Hello Christina, yeah it would be cool to be a CSI investigativor and us Allstars were investigativors for one cool hour, Everyone had a great time being a investigator.
To: Jayson, yes the Allstars have been very busy over the past week with the Athletics carnival, our Observatory excursion and the CSIRO forensics.
Hi there, miniLegends and Mr Al Upton!
The cute, furry animal is an otter, her name is “Sandy”.
Yes, we all enjoyed it!
What is the name of the rabbit and the duck?
Yes, she does look funny. She’s actually typing something. I wonder what will she type.
@ - Phoebe
We appreciate that you like our blog. The blackmailing plot was a crime created by the CSIRO. We had to do a number of experiments to find out who was involved in the blackmailing.
Sandy is a otter our blogging friends Sandaig gave to us as a gift. In return we gave them our kangaroo Skippy. I wonder what Husky is like?
@hi
it great to visit our blog S23P wellnice to meet you
good your blog look work vevry well right good scroll
great bye?
hi Allstars
Did you have fun doin your C.S.I work because it looked fun!
from Bradd
7Aiters****
Cool!!!!!!!!
Your really having fun with sandy.
because we are really with skippy.