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877 Questions

Last Answer on March 04, 2021

I never understood how they establish time of death weeks after someone died. Are there biological processes that take place WEEKS after death with enough consistency to allow you to pinpoint time-of-death to within a few hours / days?

Asked by HammerPants almost 8 years ago

I'm sorry but you'd really have to ask a pathologist, this is not my area. I imagine it would depend a lot on the individual situation--the environment, temperature, humidity. Insect activity can be pretty accurate. But I believe that pinpointing to a few hours after someone has been dead for weeks only happens on TV.

774 Votes

Have you ever read Stiff by Mary Roach? I loved it, so interesting. What are your favorite non-fiction books about forensic anatomy?

Asked by Gwen almost 8 years ago

No, I have not. I don't really have any favorites about forensic anatomy in particular, though I borrow Postmortem by Koehler & Wecht from my co-worker often. I also liked the books by Dr. Michael Baden and Dr. Thomas Noguchi. My favorite forensics book is probably Colin Beavan's Fingerprints.

770 Votes

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I was wondering if I sent you a picture of a bone can tell me if its human or animal?

Asked by dee over 7 years ago

I can try. I'm not an anthropologist, but we do have a field guide here showing the skeletons of many mammals and birds. We used to have a lot of 'found bones' calls at my agency--the area had a great deal of construction going on in the area and the digging would often turn up bones.

767 Votes

I'm currently in the Navy and looking into taking college courses towards forensics but I do have a charge of accessory after the fact to a felony in 2002. (Closed file) Would this hinder my ability to obtain a career in this field? If so how badly?

Asked by jwalk over 7 years ago

I honestly have no idea, and suspect it would depend on where you are applying--whatever the hiring agency's policies are. I'll ask my boss and get back to you.

OKAY! I finally asked my supervisor about this, and unfortunately the news is not too encouraging. If you were found guilty of a felony, you might have a real problem getting a job with a law enforcement agency. But just because the crime was a felony doesn't necessarily mean that was your charge, you could been found guilty of first degree misdemeanor or some lesser charge, and that might not preclude you from employment. Also, smaller agencies might be willing to waive this exclusion especially with military experience. And this is only in the event that you were convicted. If you were simply charged with the crime but not convicted, then most likely it isn't a problem at all. The only way to know for sure is to ask a few of the places you'd be interested in working at and see what they say.

766 Votes

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Have you ever worked on a scene that you'd describe as the "perfect crime" in that the perp literally left NO trace of his presence?

Asked by Seth over 7 years ago

It depends on how you define 'perfect'...if I can't tell the perpetrator has even been there then we wouldn't even know a crime has occurred, so I wouldn't know it was a perfect crime. If you mean 'perfect' in that the guy didn't leave any DNA or fingerprints that we found, sure, all the time. I've had plenty of burglaries in which it was apparent that a burglary occurred, but between humidity and surface conditions and what the perp had to touch in order to get the job done, I find no fingerprints at all (not even the people who live there). If you walk up and shoot someone (especially with a revolver, so no dropped casings) and walk away, you're not going to leave anything. Maybe a hair or a skin cell, but how would a CSI find that on a dirty street? Hence, a 'perfect' crime. Unless you get a parking ticket on the next block or a witness waiting for a pizza delivery happens to look out their window or there's an ATM camera you didn't know about.

766 Votes

My girlfriend's condo was broken into, but the cops said it wasn't a big enough deal to check for fingerprints. Who makes that decision, and can I hire a forensic scientist privately to do that?

Asked by Marc almost 8 years ago

I apologize to your girlfriend on behalf of the law enforcement community. No one should ever be told that their crime is not 'a big enough deal.' Even if the responding person thinks that, and I'm not saying we don't sometimes, you would think they'd have better sense than to say so. Unfortunately you had a lazy cop who didn't want to get his hands dirty--or, truly, that could be an unofficial policy taught to rookies by other lazy cops who don't want to get their hands dirty. OR it could be the policy of the latent prints department who want to limit their caseload so they won't accept cases that had a claim less than X amount of dollars. So it's hard to know where it came from, but it's still wrong. Anyone who's burglarizing a condo is burglarizing plenty of other places as well and it would benefit everyone in town if they were caught. It would only take ten or fifteen minutes to throw some powder on at least the point of entry and any smooth and glossy surfaces the burglar had to have touched (bearing in mind that knocked over is not the same as touched) such as a mirrored medicine cabinet or a glossy lacquered jewelry box. Now if she's positive the perpetrator is her ne'er do well stepson who lives there (so that it is technically not burglary) or she realizes the burglary happened 3 weeks ago and she didn't check her jewelry until now or some such circumstances as that, or if the door had been left standing open and the only item disturbed is fabric-covered so it won't hold prints, I can understand not processing for prints, but they still should explain that. That said, burglaries are my LEAST favorite task at my job, but that's because I'm lazy and hate getting my hands dirty.

765 Votes

Even if testing doesn't produce a database MATCH, can you tell from a fingerprint or DNA whether it belongs to a man or woman, age, race, etc?

Asked by Luisa Henson over 7 years ago

From a fingerprint, no. From DNA, not age but they can probably make estimates that the sample likely belongs to a particular racial profile. They can also look for markers from the Y chromosome to determine gender. However I don't know if they necessarily see all these loci in every analysis. Usually in DNA testing you have samples from the crime scene, the victim and the suspect, and we want to know if this sample matches either the victim or the suspect, period. So they most likely don't test for the other factors unless requested. But I am not a DNA analyst so I could be wrong--they could be able to tell all sorts of things that they don't put in the reports because it's not relevent to our particular case.

764 Votes

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Forensic Scientist

Ask me anything!

What do YOU do?

I never understood how they establish time of death weeks after someone died. Are there biological processes that take place WEEKS after death with enough consistency to allow you to pinpoint time-of-death to within a few hours / days?

Have you ever read Stiff by Mary Roach? I loved it, so interesting. What are your favorite non-fiction books about forensic anatomy?

So you wanna be a Forensic Scientist?

I was wondering if I sent you a picture of a bone can tell me if its human or animal?

I'm currently in the Navy and looking into taking college courses towards forensics but I do have a charge of accessory after the fact to a felony in 2002. (Closed file) Would this hinder my ability to obtain a career in this field? If so how badly?

Also on Jobstr...

Have you ever worked on a scene that you'd describe as the "perfect crime" in that the perp literally left NO trace of his presence?

My girlfriend's condo was broken into, but the cops said it wasn't a big enough deal to check for fingerprints. Who makes that decision, and can I hire a forensic scientist privately to do that?

Even if testing doesn't produce a database MATCH, can you tell from a fingerprint or DNA whether it belongs to a man or woman, age, race, etc?

Forensic Scientist

Ask me anything!

What do YOU do?

I never understood how they establish time of death weeks after someone died. Are there biological processes that take place WEEKS after death with enough consistency to allow you to pinpoint time-of-death to within a few hours / days?

Have you ever read Stiff by Mary Roach? I loved it, so interesting. What are your favorite non-fiction books about forensic anatomy?

So you wanna be a Forensic Scientist?

I was wondering if I sent you a picture of a bone can tell me if its human or animal?

I'm currently in the Navy and looking into taking college courses towards forensics but I do have a charge of accessory after the fact to a felony in 2002. (Closed file) Would this hinder my ability to obtain a career in this field? If so how badly?

Also on Jobstr...

Have you ever worked on a scene that you'd describe as the "perfect crime" in that the perp literally left NO trace of his presence?

My girlfriend's condo was broken into, but the cops said it wasn't a big enough deal to check for fingerprints. Who makes that decision, and can I hire a forensic scientist privately to do that?

Even if testing doesn't produce a database MATCH, can you tell from a fingerprint or DNA whether it belongs to a man or woman, age, race, etc?

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