First off, full disclosure.

I am a homicide detective. The images I sometimes work with are of videos and video frame grabs of suspects. I try to enhance the image for obvious reasons. I just started using CS2. I found this forum to be one of the best and hope to get some guidance and help.

This is a frame grab from a video. It was printed on regular paper. I then scanned the image and tried to enhance it. Unfortunately, the digital copy is no longer available. This case is from 2004 and this photo is the best lead. Any help would be greatly appreciated. I'll be happy to answer any questions you might have.

Well, I have a few questions --

1. Why would you be posting a suspect's photo on the internet where the subject or friends of the subject or even victim or witnesses might see it? I suppose the chance is small, but it still seems questionable practice.

2. Doesn't your department have access to a crime scene photo specialist? (we have at least one crime scene photographer who recently posted non-job related work.)

3. How can we verify that what you are stating is true?

4. If this image is evidence in a crime, why was the original destroyed?

You said you'd be happy to answer any questions; I'm always happy to ask. ;)

Still happy to answer CJ. Very valid questions.

1. Why would you be posting a suspect's photo on the internet where the subject or friends of the subject or even victim or witnesses might see it? I suppose the chance is small, but it still seems questionable practice.

Think Americas Most Wanted tv show. They recreate crimes, post videos, photos, scetches and even names of wanted suspects/offenders on tv every week. Same with the news. Not a problem.
Unfortunately, the victim in this case will never see it. His family and friends have already seen it. I want to enhance it so I can show it to as many people as possible. As far as the subject seeing it, so what? He knows what he did.

2. Doesn't your department have access to a crime scene photo specialist? (we have at least one crime scene photographer who recently posted non-job related work.)

I wish. Believe it or not, we just got a nice computer system dedicated to image enhancement. All they put on it was CS2. Nobody has been trained yet. I use it for my own cases. For all I know I might wind up being the photo guy. By the way, our crime scene specialists just take the pictures, on film. That's it.

3. How can we verify that what you are stating is true?

I'm willing to send a private email with my name and work number to one high ranking member that everybody else trusts.

4. If this image is evidence in a crime, why was the original destroyed?

One very good question that I am also asking. I wasn't involved with this case in 2004. This photo is from a retail store surveilance system. The employee did not know how to burn a cd copy. So he printed this picture and then videotaped(!) the image of the computer screen! Needless to say, the video is pretty bad.

Hope this helps.

P.S. Does this have spellcheck?

Answers seem credible. I do wonder, for the sake of your department, whether your state police lab could not be involved in situations like this? It is my limited understanding, that our Arizona Department of Public Safety (state highway patrol) provides some assistance to local police who lack needed resources.

Spell checking? ;) Use Firefox version 2, it includes spell-check. It's also free. :)

I sent a message to the site owner, Doug Nelson, just to make him aware of your need.

So, who's got the first idea on fixing this? (I'm working on it, but I'm not getting anywhere fast...)

Dimmi..... you're saying the 'frame grab' is no longer available? If you have anything before you started enhancing it (no offense) that would help. Even if you think the 'before' looks worse, with other techniques the results may be better. I've sent you a private message.

Beth

It sounds like Beth knows something about video frame grabs; from what I just read briefly in an internet search, there might possibilities of enhancing a frame grab.

Dimmi, do you have a larger original image than the one which had to be resized down to fit on this forum? When someone here figures a good way to improve the image, they will be able to do a much better job on a larger original. Transmission of this can wait until someone posts steps to improve the image.

I'm trying some of ByRo's (one of the pro members here) actions, but I might be missing out on a lot of what they can do because of lack of knowledge. We have folks here who understand which techniques would best enhance the image (if much enhancement is possible) and are skilled in making the best use of these techniques.

Hmmm, I'm not sure that this rendition is improved in any degree -- anyone want to show me up? Please? ;)

I only have a color printout of a frame grab (screenshot). It's printed on regular paper. I scanned it a uploaded without any enhancements. I scanned as a jpeg and as a tif which is 1 meg. I have a video of the screen showing the original footage. (don't ask). I can try and lighten the video and grab several screenshots. I have no idea why the retail store agent didn't just burn a cd or save the footage. Probably didn't know how.

Dimmi

1) I had to delete all the images. You can repost, but please blur or mosaic the face beyond recognition (this goes for everyone). This clearly violates that person's rights, especially if he's innocent.

2) forensic imaging is its own field where what is and isn't acceptable is very different from the world of retouching.

I'd suggest contacting a company like http://www.imagingforensics.com that specialize in handling image evidence.

I will have to disagree with you. First, this image is from a retail store surveillance system. There is absolutely NO expectation of privacy. You wrote "This clearly violates that person's rights, especially if he's innocent". This statement is incorrect. You can take pictures/video of people in public, and post them on websites like this or youtube all day long.

Every day, TV shows like Court TV, Americas Most Wanted, every news channel, newspapers etc. routinely post images of persons wanted, committing crimes, even names them if the information is available. Every one of those persons including the picture posted is presumed innocent until proven guilty, yet it goes on. If you had to wait until somebody is proven guilty in a court of law, then shows like Americas Most Wanted would not exist, Amber alerts would be illegal, and you would never know about the sex offender living on your street (and he has already done his time!).

Forensic imaging is no different than what is going on on this site. Just another image that needs to be repaired, enhanced, sharpened or brightened.

I guess your main concern is liability. You and your website are
no more liable than, for example, the myriads of websites dispencing crappy medical advice. That's the beauty (or anathema) of the WWW.

That said...

I appreciate your concern. It will be interesting to see what the members of this forum have to say.

Dimmi

I agree! I would not worry about the suspects image being posted here! The exposed a crilminal is the more likely they are to be caught! If they are not guilty of the cirme that's completely different. All you are saying is that this is the best image we have of the suspect and we need help with it. I would love to see what you have and see if any of us could help you.

Tom

I will have to disagree with you. First, this image is from a retail store surveillance system. There is absolutely NO expectation of privacy. You wrote "This clearly violates that person's rights, especially if he's innocent". This statement is incorrect. You can take pictures/video of people in public, and post them on websites like this or youtube all day long.



Dimmi, not beating a lame horse, but does your department have a CSI unit or access to image enhancement through your state's lab?

It is against my department's protocol to take any evidence out of the house. I'm not aware of any department in the US where this policy differs. But of course, I have not had contact with every department, either.

Maureen

It's a scan/copy of the original. The original hard copy is not taken anywhere. I can make copies and stick them on light posts if I want. Come on, don't you guys see this on TV all the time?

There is no dedicated image enhancement lab or expert. Just a nice Dell with a big screen and CS2 on it. The state lab does not have this service, probably because of budget reasons. Digital photography and forensic image enhancment is a relatively new. It takes time to adopt new technology.

All I'm doing is trying to utilize every available resource to solve a crime. This is a resource.

Dimmi

It's a scan/copy of the original. The original hard copy is not taken anywhere. I can make copies and stick them on light posts if I want. Come on, don't you guys see this on TV all the time?

There is no dedicated image enhancement lab or expert. Just a nice Dell with a big screen and CS2 on it. The state lab does not have this service, probably because of budget reasons. Digital photography and forensic image enhancment is a relatively new. It takes time to adopt new technology.

All I'm doing is trying to utilize every available resource to solve a crime. This is a resource.

Dimmi


Thank you for addressing my questions, Dimmi. Now, considering the job description you provided I presume you are working a 187. If it is from 2004, this does not qualify as a cold case and I would strongly recommend you tap your local FBI field office for assistance. They DO have resources they can share with your department. It may require a less-than-desirable drive for you but it will be on-the-clock miles. To preserve the integrity of your case, this is precisely the action I would take if you do not want defence counsel blowing holes the size of a Buick through your evidence.

You must have a very amiable chief and for that I envy you. Mine would have me in the unemployment queue in no time flat for going to a public forum for evidenciary assistance. Unless it was his/her idea for you to seek this assistance.

You are welcome to PM me if you choose.

Maureen

Doug Nelson dropped me a note to let me know about this thread. It's an interesting approach to seek help for image enchancement from a site dedicated to retouching techniques - clever, really.

Dimmi made a comment that there isn't much difference between imaging forensics and retouching - and that's an interesting comment. Some tools are used in common, some are quite different. For instance, in imaging forensics we would never use cloning or create something from nothing (but these would be frequently used in retouching). In forensics we need to use best practices and be familiar with court requirements - things that many retouchers may have misconceptions about. But, there is no question that many tools used by the retoucher are also used by the forensic image analyst.

At any rate, if you want to contact me off-line Dimmi, feel free to send me an e-mail at reis@imagingforensics.com. I've been doing imaging forensics work since 1993, I worked for a police department as a forensic photographer and forensic image analyst for 15 years, and have provided training in this field to the FBI, Secret Service, US Army Crime Lab, etc. I may be able to help - but then, so may many of the users on this forum.

George

I was just re-reading this thread and thought I'd comment on this:

Dimmi, not beating a lame horse, but does your department have a CSI unit or access to image enhancement through your state's lab?

It is against my department's protocol to take any evidence out of the house. I'm not aware of any department in the US where this policy differs. But of course, I have not had contact with every department, either.

Maureen

In my experience that most agencies will send their work out when extra help is needed. First, most municipal agencies send considerable work to their county agency for help. They send dead bodies to the coroner or medical examiner for help. They send DNA work to the county, state or a private agency for work. They send out GSR to their county or state lab. They send original evidence out for VMD work. Rape kits are usually sent to a county agency or lab. So, work does leave most agencies frequently.

But, this is mostly to other government agencies, you may think. Well, I frequently get hired by police agencies and prosecutors (as well as defense attorneys and civil attorneys) when they can't find any government resource who can help them. I get sent original evidence on robbery, rape, assault and homicide cases from police departments, sheriff offices, district attorneys, etc. from throughout the US (I'm even working a case from Japan right now). It isn't uncommon - I've had evidence delivered by special courier, by officers who remain in it's presence, by FedEx, and even by standard US Mail (I would not recommend this last one).

All this has nothing to do with imaging - but I did want to clarify that it is much more common than you may think for police agencies to send evidence to experts and labs when needed. If it's too off-topic, perhaps Doug will pull it - but I thought it worth addressing.

George

I was just re-reading this thread and thought I'd comment on this:



In my experience that most agencies will send their work out when extra help is needed.
George

Hi George!

Forgive me for not making my point clear about taking issues outside the house. I meant that we don't recruit help from open Internet forums. My agency always uses our county or state resources, or contractors who have been cleared for such work.

The Coroner/Sheriff handle autopsies and state/Federal certified labs handle other evidence, including trace evidence, photo forensics, etc. for my department when the need exceeds the scope of our CSI unit.

We use specialists such as yourself, also, when the need arises, but we do not use non-certified resources. Only using certified, approved experts was the point I was attempting to make. Apparently I was not specific on that point. Thank you for your services and your willingness to testify in court for your results. Many cases would go unsolved if not for people like you.

I'm sorry I did not make myself clear enough in my initial post.

Maureen