Thursday, October 14, 2010

Fast Forensic Test Can Match Suspects' DNA With Crime Samples in Four Hours




Over the past few months, scientists have been working on developing a new method for DNA profiling. This newly developed method, has made checking DNA collected from people that were arrested for crime with DNA samples from crime scenes stored in forensic databases, essentially as simple and quick as matching fingerprints. The new method allows for the law enforcements to check if a person’s DNA matches other DNA found at past crime scenes, while suspects are being processed and remain in jail. The quickness and efficiency of this new test ensures that criminals are not pre-maturely released on bail. Andre Hopwood, a forensics scientists stated that frequently “criminals are arrested, spend less than a day in jail, and then commit crimes while they are out on bail.” Currently, most DNA tests take any where from 24-72 hours to complete. In order to mitigate the amount of time this process takes, scientists have built a chip that can copy and analyze DNA samples taken from a cotton swab. DNA may be collected from suspects by swabbing their mouth. After the sample is collected, it is then mixed with some chemicals and warmed up. This whole process only take four hours to complete, a number far less than current methods. This is a very beneficial method because police can correctly check and match DNA with suspects from a crime scene before they are released on bail.

This article is very important to society because it can potentially prevent other crimes from being committed by identifying suspects DNA correctly, before they are released on bail and free to commit crimes. This process should be used because it can effectively reduce the amount of time DNA profiling takes.

I chose this article because I was unaware of this new method. I was very interested in the advances forensic scientists have made in their field. This new method could be immensely beneficial for the law enforcement. I thought this article was pretty well written, but I thought it could have included more details regarding the topic. 

Submitted by R. Minetti

9 comments:

Nick Janney said...

I think in this summary of the article Russell did a good job of explaining the DNA process in a simplistic way that was easy for me to grasp. I liked the fact that it is now DNA tests can be taken within a few hours which will minimize criminals chances to get out of prison. I also find it incredible that we can link a person to a crime scene purely by taking a swab of their cheek cells. A couple things I think Russell could improve on is just add a little bit more detail to his summary and maybe give a reflection. Other than that I was very impressed and interested with the article.

Janelle said...

I liked that he explained the full importance of the method by telling about how crimes are committed while they are out on bail. It helped me understand what the point of developing the method was. It also showed the immense importance of the project. I also liked that he told why he choose the article. It helped us understand why we too could be interested. I thought that he summarized the article well, making it interesting and including most of the important points.
I thought that the summary could have included more details about the process its self so we could understand exactly what they were doing. As it was we only knew what the reason for the method was. I wanted to know how this method was different from the previous one. I also thought that the criticism was somewhat short only mentioning one or two things that were wrong with the article. I’m sure that there were a few more things he could have criticized.
I was impressed by the fact that testing DNA can now be as efficient as fingerprints. The time it takes to extract some one’s DNA is one of the main reasons that fingerprints are used instead of DNA. It was interesting that now that obstacle can be over come. People can destroy their fingerprints by burning their fingers but DNA stays no matter what.

Alexandra said...

I think that this article is very interesting. This new method for DNA profiling seems more efficient than the original way. This summary made this topic easy to understand. I liked that this new way would allow law enforcements to check if a person’s DNA matches with other DNA found at past crime scenes. I liked that this new method reduce s the criminal’s chances to get out of prison. I also like the way that the article went into detail about how the process takes place and that the forensic scientists can analyze the DNA by swabbing the mouth of the potential criminal. I think that this summary was well written. I also think that Russell could have elaborated more with the reflection. I found this article to be very interesting because of all the advances in technology and in science in today’s world.

Molly Warnken said...

One thing I found interesting is that they have found a way to make DNA matching go a lot faster. It was nice to learn that because of how much faster DNA profiling could be done, there were less chances for a person to be convicted early, or even released early.. Another thing I was interested to learn was the DNA match is done by a chip and not a person. The only way to make this process happen so fast is for the scientists to swab the inside of the cheek and replicate the DNA onto a chip to be tested. It was most interesting to learn that this entire process can occur and be completed in an hour at most. I think it is interesting because the person could be connected to the crime before they even made bail.
I think this review could have been better if there was a little more information given about how the chip works and how it was developed by scientists. Also I think that this review could have been better if there were example of trial runs, or situations when this process has actually been used. It would be nice to know if this process has been proven as a viable source of evidence or not.
I did learn from this article. Before I read it, I did not know that advances were being made in DNA profiling. It was very interesting to learn that this process could aid in arrests and releases from jail.

xavier said...

Forensics Xavier Lessane
Russell’s Blog



This blog was interesting, Russell got right to the point saying what it did and how it did it. He wrote how the DNA helped because it checked people that were arrested; another thing he showed well was that he showed how scientist used it and how others used it in many ways. Hew rote the main importance of this method and it helped me to know what it really was. He could of did better on his summary and how he could of put more facts in the summary, He also could of told how the method was different and how it made it easier for others. The thing that impressed me was how they used it to tell if peoples DNA are the same and how they are different.

Anonymous said...

Allison Sher
Something I found interesting about this article is how much information we can gain by doing so little. With just a single cotton swab in a criminal’s mouth, we are able to sort them into a system and keep them on record. This is effective because it helps us keep control of repeat offenders. Another bit about this article that I found interesting was how much faster we are able to collect data now and process DNA. Before it used to take about 24 hours, but now with the swabbing technique, we are able to process DNA within 4 hours making the system just that much more efficient. One last thing I thought was good about the article was how the new system to process DNA is more efficient so if a person was really innocent of a crime, they don’t have to suffer in jail for a full 24 hours at least, and instead can be released from their hold in just a few hours max.
Two things I thought could have made the article better would have been a stronger presentation on the other types of gathering DNA. Also, elaborating more on the actual process of processing the DNA would have been appealing to read.
Something I learned from this article was how slowly DNA processing used to be. I thought that a swab test used to take maybe 30 minutes to an hour; where in this article I learned it can take up to a full day.

kevin bisconti said...

I think that Russell did a great job on the summary of the article. I also think that he choose a great and very interesting articale to read. I found it very interesting how it can take up to 72 hours to fully match up DNA. Which is why i think that it is very interesting that it can now take such a short time to proceses.

However i think that russell could have improved the detail that he put into the blog i dont think that there was much. other than that though it was a very intersting article.

Devon said...

Russell did an excellent job explaining why this new DNA profiling would be benefit society. I really like how he puts in a quote from the article; it makes the summary seem more accurate and valid. Lastly, I found he covered the basic, important topics in the article very well and explained them in an easy to follow way.
This could have been a better review if Russell had chosen a longer article. His article was only 3 paragraphs, while it should have been about 15 paragraphs. The article he reviewed seemed almost like a review of a different article. That is my only critique of how this review could be better, I found he did a great job covering all he needed to.
I was impressed with this new DNA profiling in general. I think it will definitely speed up the process of decisions and will hopefully scare off some criminals since they know there is a faster and easier way of getting scientifically caught.

Alex Hartwell said...

3. It was written really well
3. He made it easy to understand the DNA process
3. He used specific details from the original article
2. He could reflect on the article
2. He could have made it a little longer with a bit more detail.
1. I learned that it is possible to identify someone very easily.