Thursday, October 30, 2008
"Fingerprint Breakthrough Could Solve Cold Cases"
http://crime.about.com/od/forensics/a/metal_prints.htm
As advances continue to progress in the field of forensic science, just recently British forensic scientists have developed a new fingerprinting technique in which prints can be identified from metal objects even if they have been washed away with water or soap. With this new technique, scientists are able to obtain fingerprints on metal objects ranging from small shell casings to large machine guns. The process consists of applying an electric charge to a metal, such as a gun, that has been coated in a fine conducting powder. As the charge is applied, the small corrosion left on the metal by fingerprints attracts the powder that ultimately reveals the appearance of the fingerprint. This procedure is made easier from the heat produced by the gun as the shot was fired. This method is particularly good for identifying suspects through examining metallic evidence for even if the criminal washes the gun with soap and water, the slight corrosion made by the fingerprint remain and can now be exposed. As the scientific support manager for the Northamptonshire Police, Dr. Bond suggests that this new technology will lead to a serious of numerous past case re-openings to further evaluate the physical evidence of metallic objects that may contain corrosion points and reveal the truth in the court room.
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8 comments:
I think Keith did an excellent job researching this topic. I really liked that he went into detail about the procedure but was able to keep it short as well. I also thought he did a good job of identifying how the method would help and what it would be used for, and the effects it could have on cold cases. I think Keith could have explained who Dr. Bond is becuase he never did, and maybe include when the new process will become used in the field. I really learned alot through the article and I think it will be really interesting to see how this new procedure changes forensic science.
I think that this article goes beyond the requirements...it's really well done. Keith went into detail describing the technique's procedure, but was able to keep this topic short and to the point which is important in writing. He also identified how the fingerprint technique would prove useful in today's world. I think Keith could have included a little more information as to how scientists came about discovering this new forensic technique. Otherwise I learned a lot through this article and I would not change a thing.
Yeo Keith, good job in the current event. You went into a lot of detail about how the fingerprints are obtained. It kept my attention as i read through. I also liked how you described the possiblities of this new invention. To improve you could have possibliy made paragraphss and memtioned who Dr. Bond was. But i cannot wait to find out how this new procedure will benefit so many people with the help of forensic scientists.
had good details about the article. he did a good job at explaining the methods used. looking forward to see how this new procedure will change forensic science
Three things well presented in this article are what was discovered, how it works, and how it will affect forensic science. Two suggestions on how the review could be better are to include who discovered this new method, and a possible case which this could help solve. One thing that I learned from this review was that fingerprints remain on metal, in some form, so that they can become visible when an electrical charge is applied to it.
I personally think that this article is well chosen, as it presents something new that applies to our actual range of study, physical evidence. It was easy to handle, as it was brief but to the point, and it also did a great job of describing the procedure in detail. It could have been better if there was more said about Dr. Bond and how he was involved and described the difference between the previous technique and the newly discovered one. Overall, I was impressed by this article.
Keith, this article is very well put and adds a lot of detail for further inquiry, good job! I really enjoyed how my attention was kept throughout the whole article because it was very detailed, yet very compact. I especially liked how the fingerprint technique was explained to improve today's world. To improve this article, maybe more information could have been provided regarding how these new techniques came about.
Thanks,
Megan Cyganowski
Keith did a great job with presenting the topic of the article then getting straight to the point on what it does. He took what seems like a very complex process and made it very understandable. two things I would make better would maybe go a little more in depth about this process and also about how it was discovered, or something else of that nature. Altogether very well presented, and generally articles that have to do with complex processes are hard to explain due to the details that the articles give but keith was able to narrow it down to the facts needed to understand this process. I was very interested about this topic I think that it's possible application to other materials could be a major breakthrough.
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