Forensic science and its applications

 Forensic sciences is a branch of science that includes many other sub-scientific disciplines. These are all sciences that are very helpful in the investigation of all kinds of crimes, because they present in court the scientific evidence of the guilt of the offender who, despite the impartiality of the court and the jury, decides the sentence of the offender only Because there is only science behind them. Some of these investigators investigate crimes, some of them try to understand the crime scene by repeating the crime scene, while some investigators try to understand it.Forensic science and its applications.

Forensic science and its applications
Forensic science and its applications


 Obtain evidence of crimes in laboratories. If on the one hand the object of these experts is to punish the right accused, on the other hand they also want to save the uncommitted sin from punishment.

Law enforcement and crime investigation are the responsibility of the police department. But since the methods of criminal activity have changed a lot these days, the methods of investigating them have also changed a lot, in which the involvement of forensic science has increased significantly.how forensic science is used to solve crimes.

"Judicial Humanities"


Suppose a human skeleton is found somewhere, all the flesh of which has been decomposed or burnt and only its burnt bones remain. Even if all the bones of the body are destroyed, the skull and teeth will last for a very long time. Stay safe The structure will require the services of an anthropologist to identify the person, who can learn about his or her race, sex, age and death from a study of his or her bones, in which the structure of the teeth is very helpful. Is . This caddy NA can also be taken from a tooth or molar, which will also help in verifying his personal identity and the identity of his family.

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On his skull, a forensic artist creates his original form and takes pictures of him, the publicity of which may come to the notice of those who know him. A study of the objects found near the corpse may reveal many other facts.


The forensic anthropologist is also trained in the field of archeology, which would enable him to safely dig out a buried corpse and its contents, so that no part of the corpse or any accompanying it could be found. It also ensures that the objects are not lost. He also makes sure to measure the mutual distances of all the objects found and make maps of them which will be helpful in later investigations, as in the case of a bomb blast, fire or air crash. Things and pieces of human organs and bones are scattered here and there.


… Forensic Insects


If an old corpse is found, the date of its death will be known from the types of insects or insects found on the corpse, which will require a forensic insectivist to identify. Similarly, if the corpse is covered with tree flowers. The trees can be identified and if they are not at the place where the body was found, they can be guided to the place where the tree is where the body was first placed. Similarly, if the soil attached to something next to the body is found. If the body is different from the place where it was found, this mud will indicate the place where the crime took place. One person's hair or two or three different hairs can be used to obtain the DNA of all those who have been present at the time of the crime. In the same way, the hair and fur of animals will also identify their type and breed. Which will be useful in the progress of the investigation going forward. In Europe and the United States, DNA investigators have convicted criminals who committed crimes two to three decades before DNA was discovered, because the artifacts found at the scene were safe and the case there. Unresolved, they are called cold cases and all related items are forensic investigation.


Forensic Criminal Specialist


Its experts can easily find out where a criminal commits a crime and then wherever he goes. What he touches and what he leaves behind. They are silent witnesses to his crime. Whether it's the fingerprints of his hands or the marks of his feet and shoes. Which will help in its identification. Similarly, its hair, saliva, blood or any other body fluids will make its identification possible apart from taking this caddy NA.


Clothes threads or buttons, carpet floss, cigarette butts, glass pieces, store receipts are all evidence that testifies to a criminal's guilt. Which may be lost by the gathering of the people or ignored by the incompetence of the investigating officer. Of these, only the affected ones will be helpful in the investigation. The tires of the vehicles and the marks of strangers are identified and preserved on plaster of Paris and presented as evidence in court. Painted or broken light plastics from car accidents are also strong evidence. Forensic criminals are responsible for identifying and collecting these items and handing them over to various forensic experts and laboratories. Gets the reports and then presents them to the court, so that the court can make the right decision.

Digital Science and Multimedia Science


In this age of digital and multimedia science experts are also very important in investigative matters, because the victim and the killer's mobile phone, tablet, laptop, internet, photos, audio tapes, video of automatic cameras and video of digital cameras, as well as mobile or internet The exchange of messages also provides information about crimes, called digital testimonies. Specialists use special hardware or software for this are Similarly, audio and video tapes use special tools to identify recorded sounds or increase the resolution of dim images, after which it becomes possible to identify people and objects.


Photographs from different angles of the victim's wounds and the location of the scene also reveal many useful facts, which can be presented as evidence to satisfy the court or jury and all these means are used to reach the culprit. Are In addition, nowadays, suspects are asked to answer questions after attaching a lie detector, which forms a graph on graph paper like a cardiogram, which is straightforward and smooth to tell the truth but graphs when lying. I have ups and downs. This either removes the suspicion from the suspects or strengthens the belief in one of them and then the whole focus is on the liar and it becomes easier for the investigator but the court considers the graph of this tool as final evidence. Does not decide. In the same way, according to the tricks of the people, the sketches made by the artists also help in tracing the culprit. Judicial Journal Scientist's Specialist Yen's job is to investigate the laboratory results on the spot and obtain clinical results, for which he can get help by contacting other Specialist Scientists. These include firearms analysts, geologists, vehicle accidents, handwriting identification and analysis experts, document identifiers, fire analysts, causes of building collapses, knives or bullets. Includes analysts of the shape of the emitted splatter.

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… Pathology and Biology


The work of experts in these fields is very important in criminal investigations, as they perform an autopsy to determine the time and cause of death, identifying the nature of the wounds and the weapons used. These experts have to review the incidents and collect various evidences from there, including bullets, hair, blood or blood stained objects. In addition, it is the responsibility of these experts to obtain the CADN of the people involved in the incident. The help of forensic dentists can also be obtained for the dental record of a stranger to identify his personality. The biologist is impartial. He writes down all the details and submits them to the court along with the photographs, as a result of which either the accused can be acquitted by the court or he can be convicted for his crime.


This is the person in the middle of the investigation who is familiar with the entire investigation team and the progress of the investigation. According to the law, in addition to the victims, accidents, sudden deaths of healthy persons, accused in police custody and deaths due to negligence of hospital staff or any death in a public building or place should be legally mandatory.


Forensic Psychological Analysis


Their opinions are important in civil, criminal and family cases, as their testimony in court is important in issues such as custody of children, mental capacity of parents, domestic disputes and child molestation. They have close ties to the lawyers of the people involved in the case. They also analyze the mental and emotional state of the accused. In the United States, if two crimes of the same nature occur in the same area. So they set up a profile of the offender in which they provide information about the offender's age, race, height and occupation based on the data of the previous offenders and their experience, which is usually accurate and sufficient for the investigators to arrest the offenders. Is helpful


… Judicial Toxicity

how police use forensic investigation crime

The task of experts in this field is to assess the harmful effects of drugs and chemicals on humans and animals, which have to find answers to these questions. Has the prescribed dose of medicine caused death in humans? Wasn't this person under the influence of drugs or alcohol? Was he given any drugs to commit the crime? An autopsy is done to get the answers to all these questions and then the answers are obtained by testing them in the laboratory.

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 If someone else has incited him to commit the crime, he will be considered an accomplice.

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