Researchers from the Department of Chemistry at the University of Leicester, in collaboration with the police scientists, developed the method that allows researchers to "watch" the fingerprint even after it has been completely wiped from the surface
MZP scientists from the University of Leicester in the United Kingdom, in collaboration with the Northamptonshire Police, announced a significant breakthrough in crime research that could lead to the reopening of hundreds of investigation files that had reached a dead end.
The MZP research center at the university worked together with the research and development department of the police to develop new ways of obtaining fingerprints from crime scenes. Researchers from the chemistry department at the university, in cooperation with the police scientists, developed the method that allows the researchers to "watch" the fingerprint even after it has been completely wiped from the surface. They conducted a study that looked at how fingerprints can eat away at metal surfaces. The method can amplify - after firing - a fingerprint imprinted on a small-diameter metallic bullet casing before the gun was fired.
Dr. John Bond, one of the authors of the study, says: "For the first time, we are able to produce fingerprints of people who touched the pods before they were shot." "Wiping the pods or washing them with soapy water will not help - and the heat of the shooting itself helps the process we use. The method is made possible by applying an electric current to a metal surface, such as a gun or backpack, which is coated with a thin conductive powder, similar to that used in photocopiers. Even after the fingerprint has been wiped, a thin outline of corrosion is still left behind on the metal and it is this that attracts the powder to be absorbed on it when the electric current is applied, so that an image of the original fingerprint is obtained. The method works on any metal surface, from the bullet pouch to the shooting machine itself. Even if great heat managed to evaporate ordinary evidence, the police would be able to find out who touched a particular gun."
Dr. Bond's initial findings, which led to the joint research, were published in an article in the "American Journal of Forensic Science". Professor Rob Hillman (Hillman) from the Department of Chemistry added: "It is extremely satisfying to see how excellent basic science is used to solve practical issues. We are happy for the opportunity to collaborate with Dr. Bond and his colleagues and we look ahead with optimism towards the development of exciting chemistry and its use in the MZP sciences." As a result of the research, criminal cases from decades ago could be reopened because the underlying imprint never goes away, the researchers say. Dr. Bond adds: "It is certainly possible that hundreds of old cases will be reopened because our method can only be overcome if the metal layer is rubbed very hard."
11 תגובות
No. P
Privilege can be imposed on methods and means, but for some reason this is not done.
It is impossible to keep it a secret for a simple reason - when a criminal trial is conducted, one must show according to which method the evidence was collected and show that it is based on a reliable method.
Amusing that the investigator is called Bond...
probably not. But for me, at least in principle, the idea is elegant and simple. As I love them.
September:
It doesn't seem that simple to me.
It is also interesting that the shine in the idea is probably based on the loss of the shine of the metal
It's fun to see the practice of such simple things. (and yet, brilliant).
Ami:
this does not work.
Researchers from the university are involved in this, whose main salary is the publication of their discoveries.
Besides - you can't keep it a secret if it reaches all the police.
In any case - it will make it very difficult for the criminals and it will always be possible to reach the last person who touched things without gloves and follow the votes from there.
And is it wise to tell the criminals about the new method and further conclude by obfuscating it? The difference now will be that criminals will remember to load their guns with gloves. It is an evolution of predator and prey and knowledge, as in any war, should be kept among the knowledgeable only. Of course, the method should be publicized in police circles around the world, but it is unnecessary to publicize it to the general public (even though it is terribly interesting).
Greetings friends,
Ami Bachar
Avi:
I think it used to be a "section" and today it's a "department"
What does the meme mean in MZP?
Stunning