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989 Questions

Last Answer on July 21, 2022

Is a forensic expert allowed 2 make a hair or fiber match based only in the fact that the hairs or fibers were artificially dyed

Asked by Michele about 9 years ago

Unlike what you see on TV, a hair and fiber expert never 'matches' hairs or fibers (except in the case of DNA analysis). We can say they are 'consistent with' having come from this person or this article of clothing in that all the microscopic characteristics are the same or within a group of the same characteristics. Though dyed hair is quite distinctive with the growth since dying and the color so it would be a strong indication that they came from the same person, you couldn't actually put a number on it (like 'there's a one in two billion chance this came from someone else', like DNA). That's largely why hair and fiber comparisons are rarely done any more.

786 Votes

If the bar code if worn off of a computer and you are trying to figure out what the bar codes numbers were. How can you get the numbers? Cause where the bar code was before it was torn off. It left a lil bit of the code is visible.

Asked by Laray kirker about 9 years ago

I would try an alternate light source, UV or IR light or even white light with colored filters. That might make it more visible. Other than that, I don't know, sorry. You'd have to ask a document examiner, they might have more techniques for working with paper.

785 Votes

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Hi Lisa thx a lot. A last similar question reg brain because my father was diagnosed with both heart and brain problems. Is extraction of brain and it's examination necessary If patient had brain probs? If so is it done at forensic lab or autopsy?

Asked by Raja about 8 years ago

If someone is under a doctor's care and the doctor signs the death certificate, then there most likely will not be any examination at all. Autopsies are not done in every case, only under some circumstances. Any examination would be done at autopsy.

784 Votes

If somone ejaculated in a girls or guys mouth they swallow can u find dna proving who ejaculated

Asked by jim amdiny over 9 years ago

See above.

782 Votes

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Would you be able to tell the difference between hair that was taken from a victim's brush (and planted at a crime scene) and hair that just naturally malted? For example, would hair from a hairbrush have more of a root than a malted hair??

Asked by Caroline about 8 years ago

I don't know what malted means, but I suspect the answer is no. Just brushing hair can pull it out just as in a struggle.

780 Votes

can you tell the age of pharmaceuticals - specifically Ritalin/methylphenidate - like how many years ago it was made?

Asked by rogernono almost 9 years ago

I'm sorry, I wouldn't have any idea. Do you mean dating the actual pills, or once they're in a person's system? If the former I think you'd have to ask a chemist, if the latter, a toxicologist. Sorry I can't help.

779 Votes

Pressure points on a car, Chevy Cavalier, between a 1198-2002 year model, I would like to know the metal density of the fender, when struck by a child less than 80lbs and less than 4ft tall, car traveling at a 50mph.Head lights density test, how much

Asked by Brandy Daugherty about 9 years ago

I'm sorry but I am not trained in accident reconstruction. That is a very specialized field. I would have no idea whatsoever.

778 Votes

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Forensic Scientist

Ask me anything!

What do YOU do?

Is a forensic expert allowed 2 make a hair or fiber match based only in the fact that the hairs or fibers were artificially dyed

If the bar code if worn off of a computer and you are trying to figure out what the bar codes numbers were. How can you get the numbers? Cause where the bar code was before it was torn off. It left a lil bit of the code is visible.

So you wanna be a Forensic Scientist?

Hi Lisa thx a lot. A last similar question reg brain because my father was diagnosed with both heart and brain problems. Is extraction of brain and it's examination necessary If patient had brain probs? If so is it done at forensic lab or autopsy?

If somone ejaculated in a girls or guys mouth they swallow can u find dna proving who ejaculated

Also on Jobstr...

Would you be able to tell the difference between hair that was taken from a victim's brush (and planted at a crime scene) and hair that just naturally malted? For example, would hair from a hairbrush have more of a root than a malted hair??

can you tell the age of pharmaceuticals - specifically Ritalin/methylphenidate - like how many years ago it was made?

Pressure points on a car, Chevy Cavalier, between a 1198-2002 year model, I would like to know the metal density of the fender, when struck by a child less than 80lbs and less than 4ft tall, car traveling at a 50mph.Head lights density test, how much

Forensic Scientist

Ask me anything!

What do YOU do?

Is a forensic expert allowed 2 make a hair or fiber match based only in the fact that the hairs or fibers were artificially dyed

If the bar code if worn off of a computer and you are trying to figure out what the bar codes numbers were. How can you get the numbers? Cause where the bar code was before it was torn off. It left a lil bit of the code is visible.

So you wanna be a Forensic Scientist?

Hi Lisa thx a lot. A last similar question reg brain because my father was diagnosed with both heart and brain problems. Is extraction of brain and it's examination necessary If patient had brain probs? If so is it done at forensic lab or autopsy?

If somone ejaculated in a girls or guys mouth they swallow can u find dna proving who ejaculated

Also on Jobstr...

Would you be able to tell the difference between hair that was taken from a victim's brush (and planted at a crime scene) and hair that just naturally malted? For example, would hair from a hairbrush have more of a root than a malted hair??

can you tell the age of pharmaceuticals - specifically Ritalin/methylphenidate - like how many years ago it was made?

Pressure points on a car, Chevy Cavalier, between a 1198-2002 year model, I would like to know the metal density of the fender, when struck by a child less than 80lbs and less than 4ft tall, car traveling at a 50mph.Head lights density test, how much

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