Thursday, 6 June 2013

 Who committed the crime? well, we'll find out! our field trip was awesome, I learned soooo much, we learned about testing fingerprints by using graphite powder (fingerprint analysis), how to tell whose footprints are on the ground, and even whose pen was used in a letter (chromatography) ! Now to the details, first, just to let you know, I'm just going to tell you the main points, so here we go! the first station me and group went to was the fingerprint analysis, at that station we learned learned that fingerprints are one of the best ways to figure out who committed the crime because everyone has a different fingerprint. The next station was looking at footprint and telling whose it was, we learned that if you're  comparing a shoe to the print, then it is best to look at  the patterns on the shoe. Then we headed to the fibre and hair analysis, when we were there, we looked at hair and fibre through microscopes, one of the main points I learned was that if you are trying to compare the given sample to the found sample, it is easiest if the microscopes are next to each other. Then, we headed to the  chromatography station, It was here that I learned how to test the suspects pens if there was a note left at the crime scene. Probably the biggest point I learned at that station was that you can put special cards with the suspects pen on it, in a certain solution to match the letter. It was also at this station that we  learned how to compare handwriting, in fancy terms, handwriting analysis, The biggest point I learned here was that you can take a word from the note from the crime scene and compare it to the same word written by the suspect. If the handwriting matches then you will have your answer. In the end, many of our answers pointed towards Alistair, It turned out he was the one who committed the crime, overall, I'm very excited for this unit and am hoping to answer my question. Do you have the same fingerprint on all of your fingers?

1 comment: