Well Here's A Scary Thought !

OneEyedDiva

OneEyedDiva

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New Jersey
I was talking with my son about the Idaho college murder case this morning. He said he watched a Law & Order in which a suspect's DNA was found at the crime scene but it turns out that suspect had never been anywhere near the crime scene. Someone, likely the real killer, who had found the person's blood on something (not related to the crime), generated enough from the sample to create DNA which could then be placed at the crime scene. I'm probably not explaining it right but my son said he looked it up to see if something like that is really possible. Apparently it is. So he says he's careful about throwing things away that may contain his DNA without washing them first. Serious food for thought!

Even crazier: "Scientists in Israel have demonstrated that it is possible to fabricate DNA evidence, undermining the credibility of what has been considered the gold standard of proof in criminal cases. The scientists fabricated blood and saliva samples containing DNA from a person other than the donor of the blood and saliva. They also showed that if they had access to a DNA profile in a database, they could construct a sample of DNA to match that profile without obtaining any tissue from that person." This article is from 2009...imagine the advances since.
https://www.nytimes.com/2009/08/18/science/18dna.html
 
This is indeed possible, as our DNA is all around us. And, I would imagine it happens more than you would think.

Picture this: I'm at your house confronting you about sleeping with my husband. While sitting on your sofa, I come in contact with your couple of hairs that attached to my sweater. I go home, take the sweater off, and see it's your gray hair and not my red hair.
Idea? Follow hubby to his hunting cabin, where he spends weeks at a time. Kill the hubby, use gloves, stab him but don't touch him, he falls back into a 55 gallon barrel. You put acid in the barrel, water, lid on, attaching the hairs to the lid on the out side rim so they aren't touching the inside of the barrel (acid floating). Then, leave his cabin. When he comes up missing, I know nothing other than we haven't been in touch for personal reasons. They search in and around his cabin, find the barrel with not much left of him (due to acid), but also find these hairs as evidence. They run the hair samples, connect it to you, who it is rumored to be having an affair with the hubby.
There you go.....
 
Right Now said:
This is indeed possible, as our DNA is all around us. And, I would imagine it happens more than you would think.

Picture this: I'm at your house confronting you about sleeping with my husband. While sitting on your sofa, I come in contact with your couple of hairs that attached to my sweater. I go home, take the sweater off, and see it's your gray hair and not my red hair.
Idea? Follow hubby to his hunting cabin, where he spends weeks at a time. Kill the hubby, use gloves, stab him but don't touch him, he falls back into a 55 gallon barrel. You put acid in the barrel, water, lid on, attaching the hairs to the lid on the out side rim so they aren't touching the inside of the barrel (acid floating). Then, leave his cabin. When he comes up missing, I know nothing other than we haven't been in touch for personal reasons. They search in and around his cabin, find the barrel with not much left of him (due to acid), but also find these hairs as evidence. They run the hair samples, connect it to you, who it is rumored to be having an affair with the hubby.
There you go.....
Click to expand...
Is this a true tale? šŸ˜±
 
Farrah Nuff said:
Is this a true tale? šŸ˜±
Click to expand...
Part of it is....
when I worked with the State Police, one Sgt. in my office had to transport a barrel to Forensics an hour away in the back of his pick up truck. He had no idea what was in it. Turns out it was a man, whose wife "did him in", this way. I can't recall how she killed him first. Turns out she had two other ex hubbies, and they found one hanging in his basement. And I don't mean in a nice way.
I've got an imagination, and so worked this situation up.....it could work, ya know?
 
I always thought DNA was THE standard of evidence. But I found out that a "match" means 80% of the DNA factors actually match. Supposedly that 80% is statistically enough to prove whose DNA is who's. But if you're going to send somebody to death row, and 20% of the DNA doesn't match?????????
BTW, 50% of human DNA is identical to a banana.
 
Right Now said:
This is indeed possible, as our DNA is all around us. And, I would imagine it happens more than you would think.

Picture this: I'm at your house confronting you about sleeping with my husband. While sitting on your sofa, I come in contact with your couple of hairs that attached to my sweater. I go home, take the sweater off, and see it's your gray hair and not my red hair.
Idea? Follow hubby to his hunting cabin, where he spends weeks at a time. Kill the hubby, use gloves, stab him but don't touch him, he falls back into a 55 gallon barrel. You put acid in the barrel, water, lid on, attaching the hairs to the lid on the out side rim so they aren't touching the inside of the barrel (acid floating). Then, leave his cabin. When he comes up missing, I know nothing other than we haven't been in touch for personal reasons. They search in and around his cabin, find the barrel with not much left of him (due to acid), but also find these hairs as evidence. They run the hair samples, connect it to you, who it is rumored to be having an affair with the hubby.
There you go.....
Click to expand...
Wow...that you came up with that scenario is in itself scary Right Now! But I know you to be a lovely woman who wouldn't do such a thing. šŸ˜„ You been watching Criminal Minds...or other procedurals? But that is indeed what makes the ability to do that so scary. Another thing my son pointed out was to watch submitting DNA to places like Ancestry, which I did before I was aware.
 
And we need to understand where the DNA database" comes from. How it is created. We've all seen those kits sold online and TV to test your DNA to find out your ancestry. Included in that is your permission to add your DNA to the database. They needed to find a way to build the database and they found it by giving you part of the info....and they got you to pay for it!
 
Cross contamination is always possible and someone transporting someone elseā€™s DNA is also possible. One thing about DNA is that certain markers can be engineered just like viruses. It depends on how deceiving some people are and how intelligent they are about such things.

If I kill someone and drop someone elseā€™s DNA through blood, spit, skin cells, whatever at the scene, itā€™s possible to fool the investigators for a short time. However, there is always a chance the real killerā€™s DNA could be found on one of the victimā€™s bodies, or on a piece of their belongings. Itā€™s possible now to just breath on someone and leave DNA. There are 4 victims in this case. Certainly, additional DNA will likely be or has been found. There are multiple ways to leave DNA.

DNA can always be duplicated in a lab, which is called replication or cloning. A very experienced DNA lab person can take a very small dot of blood and it can be too small to get a DNA sample. That tiny spot can be produced to a larger spot in a lab. Large enough to run it for a DNA sample.

If the lab finds additional DNA on one of the victims or on a piece of their belongings, he will have a lot of explaining to do.
 
OneEyedDiva said:
Wow...that you came up with that scenario is in itself scary Right Now! But I know you to be a lovely woman who wouldn't do such a thing. šŸ˜„ You been watching Criminal Minds...or other procedurals? But that is indeed what makes the ability to do that so scary. Another thing my son pointed out was to watch submitting DNA to places like Ancestry, which I did before I was aware.
Click to expand...
Not watching TV crime shows as much as reading cold cases for the State Police, and looking for something others may have missed. My time there was invaluable at studying personalities and what makes people tick.
I once asked the pros why...why... a criminal committed a murder. There seems no reason, and their answer to me was, " You are thinking logically, sane and they are not. So it is very difficult to sometimes find a reason. We can't begin to to know how they think as it is irrational and our minds don't work like that."

Made complete sense to me.
 
Because there are bodies involved, if the DNA that was found was blood, saliva, tears or whatever, there should be a second source of DNA. Like skin cells on the body or on a light switch, or whatever. Itā€™s referred to as ā€œtouch DNA.ā€ In most all homicide cases, there will be more than one source of DNA.

Think about a rape case. Unless a condom was used, DNA can be taken from sperm, but also the suspect would have probably made contact with the body, so skin cells would have been left also. Itā€™s also possible that the suspect may have lost a few hairs, either pubic or from the head, arms, legs, etc. And if course, many of the deceased will grab their assailants, which in turn causes the collection of DNA under the fingernails.

There are a number of ways to collect DNA.
 
Cops are wise that suspects will plant DNA at times and this is why itā€™s best to try to locate more than one source of DNA.
 
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