Forensic Science In The Criminal Justice System

Forensic Science is a form of chemistry, Biology and Physics. Forensic science plays a major role in the criminal justice system by getting the evidence of the crime.

Investigators can understand how blood splatters, drug traces and even having the ability in identifying a body. Each crime has their own challenges and their unique challenges and differences.

Trace Evidence

Evidence such as hair, clothing fibers and microscopic particles id the form of trace evidence. The importance is that criminals leave something of themselves behind which makes it a little easier for the investigator to find something useful and helpful for the crime scene. The most common trace evidence come from hair, bloodstains, glass fragments,
Investigators examine the physical properties of the fire scene and then collecting the physical evidence. The evidence is then analyzed to know whether it was done deliberately or on accident.Burn patterns may indicate criminal activity. Investigators find out why the fire happened. They verify it to a court to authorize testimony.

Forensic Pathology

Forensic pathology is being able to examine the cause of death in a crime scene. An autopsy is performed to search for any wounds, or any type of injury on the body. Pathologists perform surgical procedures and study the internal organs. Post mortems are performed by medical examiners. The four circumstances of death are a homicide, a accidental death, a natural death and a undetermined death.

Impression evidence is one the most common used piece of evidence. A impression mark is made when two objects get in contact with enough force to cause the impression mark. Pattern evidence can be identifiable or very from the pattern evidence. It can help link a suspect or tool to a certain crime scene. Investigators will look at shoe prints or any other prints. It is one of the fastest
For example, getting blood samples from a car accident victim can be helpful if they were under the influence of drugs or alcohol. The results can be used to make an inference when finding the effect of physical impairment, death and illness. Almost more than half of the cases that forensic toxicologists receive are drinking and driving cases. They also get involved in poisoning cases. Toxicologists can determine the level of drug substances that may have been used by the victim. They work with coroners and medical examiners to find the cause of death. Then, they use the data and can see the time of the death, the health of the victim and the drug history. Forensic toxicology is considered a hybrid of analytical