About the murder investigations and use of DNA for tracking criminals

About the murder investigations and use of DNA for tracking criminals

DNA is a sensitive topic for hunting criminals. If somebody would deliver DNA for tracking the family tree, that thing could help to track criminals, who are made serious crimes, and in this kind of cases, we must remember that if the person is a serial killer, the use of DNA could track the person, who might want to make another murder. But the thing is that the law is always the thing, what is controlling this kind of things.

Do we want to give a DNA sample, what might help us to track the murderer, even that person is a member of our own family? Or do we want that every person in our country will be tested for tracking persons, who might be dangerous for society? Those things are really difficult things because they are telling also things, what we don't want to find out.

The DNA sample tells how intelligent we are, and that is a very good tool for hunting people, who have cheat in the entrance examinations. The DNA has been the ultimate tool for tracking violent people from the killers to rioters, because the stones, what are used against police can be used for sources where is the investigators could take the DNA samples.

Below this text is the link to the article of the Bodom murder case, where is a picture of the homicide investigations. In modern times the crime-scene investigators would not smoke cigarettes in that area, and that picture would not even be published. In modern times the investigators would dress like astronauts and the purpose of the gas masks or the respirator, what uses air bottles is to deny the pollution of the DNA in that object.

https://yle.fi/uutiset/3-10946750

Taking the DNA samples is a thing, what needs very big accuracy and that means that this kind of investigation needs very good equipment. Only one drop of the saliva what comes from the sample taker would pollute the sample. And in some cases, there is a problem that if the person who works as the crime scene investigator would make crime, the sneeze of the investigator would cause that person DNA would transfer to the wrong place. And that kind of things is really bad for investigations.

The DNA sample doesn't tell is some person made the crime or not. That sample tells only if the person has touched some objects, or been in some room. When we are analyzing the DNA we could find the things, what the criminal doesn't want the police or anybody else to know. The sequences of the DNA are telling are we carrying some genetic illness like Schizophrenia or do the person have a genetic disorder, what causes sociopathy. But it also tells does the person some kind of allergy and what is the skin color or color of the eyes and hair. That thing makes DNA the ultimate tool for criminal investigators.