WEEK 9: Aluminum
This week I am doing trials with the material aluminum. I am doing three tests for this material. I placed a latent print in the center of the aluminum and started the cyanoacrylate fuming process. I allowed the material to sit in the chamber for six minutes for each trial.
When placing my latent prints on the aluminum, I noticed I could see the fingerprint more clearly than I could on the glass material. However, I was not able to see the ridge detail.
Trial 1: The first fingerprint I collected had the most ridge detail. I was still able to determine 5 of the minutiae.
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Trial 2: The second fingerprint was the worst outcome of the three trials. In this trial, I could not detect any of the minutiae.
Trial 3: The third trial was still not the best overall. I was only able to determine 2 of the minutiae.
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Even though aluminum is considered a non-porous material, it is created with porous structures. Cyanoacrylate fuming is best on non-porous items, so the results are expected in this trial.
Janica,
ReplyDeleteSo correct me if I'm wrong, but is this something that a crime scene investigator would do if they were trying to collect prints off of a crime scene? It's very interesting, and the tests you did look very well thought out. It seems like the goal is to be able to detect as many of the minutiae as possible? Pretty cool stuff! I hope your week is going well, and that you are getting excited for the holidays.
Alex S