Comments on: How to Clean DNA Off a Knife http://www.eyeondna.com/2007/11/21/how-to-clean-dna-off-a-knife/ How will it change your life? Fri, 09 Jan 2009 15:12:40 +0000 http://wordpress.org/?v=2.6.3 By: L.A. Jones http://www.eyeondna.com/2007/11/21/how-to-clean-dna-off-a-knife/#comment-57688 L.A. Jones Sun, 24 Aug 2008 20:22:25 +0000 http://www.eyeondna.com/2007/11/21/how-to-clean-dna-off-a-knife/#comment-57688 use H3O hydrogen peroxide. use H3O hydrogen peroxide.

]]> By: L.A. Jones http://www.eyeondna.com/2007/11/21/how-to-clean-dna-off-a-knife/#comment-57687 L.A. Jones Sun, 24 Aug 2008 20:19:33 +0000 http://www.eyeondna.com/2007/11/21/how-to-clean-dna-off-a-knife/#comment-57687 Bleach ? What about Hydrogen peroxide? I believe H3O is the professional way to remove blood from just about everything. Bleach ? What about Hydrogen peroxide? I believe H3O is the professional way to remove blood from just about everything.

]]> By: Gorilla http://www.eyeondna.com/2007/11/21/how-to-clean-dna-off-a-knife/#comment-57398 Gorilla Thu, 17 Jul 2008 04:28:18 +0000 http://www.eyeondna.com/2007/11/21/how-to-clean-dna-off-a-knife/#comment-57398 if you were really smart you would have the bleach bought way ahead of time so that they cannot trace the "pure coincidence" of it being bought very close to the murder. When cleaning the knife wear THICK THICK rubber gloves so as to not get your finger prints on again. Dont wash just once. Wash once as through as you can and let it soak in the bleach for a few hours and then wash again. Sure it might rust but its better then being in jail right? There are other more effective chemicals than bleach tho but you would need some real connections to get those and they wouldnt damage the knife...just the dna if you were really smart you would have the bleach bought way ahead of time so that they cannot trace the “pure coincidence” of it being bought very close to the murder. When cleaning the knife wear THICK THICK rubber gloves so as to not get your finger prints on again. Dont wash just once. Wash once as through as you can and let it soak in the bleach for a few hours and then wash again. Sure it might rust but its better then being in jail right? There are other more effective chemicals than bleach tho but you would need some real connections to get those and they wouldnt damage the knife…just the dna

]]> By: jhay http://www.eyeondna.com/2007/11/21/how-to-clean-dna-off-a-knife/#comment-22330 jhay Wed, 21 Nov 2007 23:52:09 +0000 http://www.eyeondna.com/2007/11/21/how-to-clean-dna-off-a-knife/#comment-22330 That's why those criminals get caught. They don't think things through. If they really gave it a thorough thought, they could've chosen not to do the crime from the beginning because they are well aware of how sophisticated the real CSI could be. That’s why those criminals get caught. They don’t think things through. If they really gave it a thorough thought, they could’ve chosen not to do the crime from the beginning because they are well aware of how sophisticated the real CSI could be.

]]> By: 212s.com http://www.eyeondna.com/2007/11/21/how-to-clean-dna-off-a-knife/#comment-22296 212s.com Wed, 21 Nov 2007 21:00:36 +0000 http://www.eyeondna.com/2007/11/21/how-to-clean-dna-off-a-knife/#comment-22296 I do not think that the case against Amanda Knox and her boyfriend is strong enough yet. The knife could have been brought from her boyfriend's home to her home by her, and then was used in the murder and washed by someone else, and then was brought back to her boyfriend's home by her again. As to the surveillance video showing her coming back to her home in light clothing, it can explained away by pointing out that the video might have failed to record her leaving the house in dark clothing soon afterward, before the murder occurred. The only thing that is difficult to explain is the fact that she changed her stories and they bought bleach to clean the house the day after the murder occurred. I do not think that the case against Amanda Knox and her boyfriend is strong enough yet. The knife could have been brought from her boyfriend’s home to her home by her, and then was used in the murder and washed by someone else, and then was brought back to her boyfriend’s home by her again. As to the surveillance video showing her coming back to her home in light clothing, it can explained away by pointing out that the video might have failed to record her leaving the house in dark clothing soon afterward, before the murder occurred.

The only thing that is difficult to explain is the fact that she changed her stories and they bought bleach to clean the house the day after the murder occurred.

]]> By: Bob http://www.eyeondna.com/2007/11/21/how-to-clean-dna-off-a-knife/#comment-22268 Bob Wed, 21 Nov 2007 19:14:02 +0000 http://www.eyeondna.com/2007/11/21/how-to-clean-dna-off-a-knife/#comment-22268 Matt, unlike CSI, offenders do not break down and admit everything as soon as the most tenuous of evidence is presented in front of them. It's fair to say that DNA left legitimately is going to be less valuable evidentially (but enough for the media to sensationalise) in court and isn't going to break the case. But if DNA from both suspect and victim are on the knife, one is Celluar DNA (from touching, handling) and the other DNA from a blood stain, then it puts a different slant on things.( I don't actually know if this the case with regards this incident but you get the idea). Regards Matt, unlike CSI, offenders do not break down and admit everything as soon as the most tenuous of evidence is presented in front of them. It’s fair to say that DNA left legitimately is going to be less valuable evidentially (but enough for the media to sensationalise) in court and isn’t going to break the case.

But if DNA from both suspect and victim are on the knife, one is Celluar DNA (from touching, handling) and the other DNA from a blood stain, then it puts a different slant on things.( I don’t actually know if this the case with regards this incident but you get the idea).

Regards

]]> By: Hsien-Hsien Lei, PhD http://www.eyeondna.com/2007/11/21/how-to-clean-dna-off-a-knife/#comment-22262 Hsien-Hsien Lei, PhD Wed, 21 Nov 2007 18:02:04 +0000 http://www.eyeondna.com/2007/11/21/how-to-clean-dna-off-a-knife/#comment-22262 David, I was thinking the same! David, I was thinking the same!

]]> By: Hsien-Hsien Lei, PhD http://www.eyeondna.com/2007/11/21/how-to-clean-dna-off-a-knife/#comment-22261 Hsien-Hsien Lei, PhD Wed, 21 Nov 2007 18:01:45 +0000 http://www.eyeondna.com/2007/11/21/how-to-clean-dna-off-a-knife/#comment-22261 Matt, I have no idea if those three people involved in the Italian murder case are truly guilty. The media, of course, is painting them as such.... Matt, I have no idea if those three people involved in the Italian murder case are truly guilty. The media, of course, is painting them as such….

]]> By: David Bradley http://www.eyeondna.com/2007/11/21/how-to-clean-dna-off-a-knife/#comment-22257 David Bradley Wed, 21 Nov 2007 17:56:01 +0000 http://www.eyeondna.com/2007/11/21/how-to-clean-dna-off-a-knife/#comment-22257 Maybe they should've used boiling bleach and then some scalding hot aqua regia, that would not only have done for the DNA on the knife but the fumes would've done for them too. db Maybe they should’ve used boiling bleach and then some scalding hot aqua regia, that would not only have done for the DNA on the knife but the fumes would’ve done for them too.

db

]]> By: Matt Mealiffe http://www.eyeondna.com/2007/11/21/how-to-clean-dna-off-a-knife/#comment-22254 Matt Mealiffe Wed, 21 Nov 2007 17:44:36 +0000 http://www.eyeondna.com/2007/11/21/how-to-clean-dna-off-a-knife/#comment-22254 I'm a big fan of presuming innocence until an individual is proven guilty in a court of law. Hmmm...maybe I'm missing something, but is it really so surprising that the DNA of two people that live together is found on a kitchen knife in their apartment? Just a guess, but I bet my DNA is on a lot of kitchen knives in my home. I’m a big fan of presuming innocence until an individual is proven guilty in a court of law.
Hmmm…maybe I’m missing something, but is it really so surprising that the DNA of two people that live together is found on a kitchen knife in their apartment? Just a guess, but I bet my DNA is on a lot of kitchen knives in my home.

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