Examining physical evidence
Forensic scientists examine the evidence that crime scene investigators gather. The evidence is collected and analysed in accordance with the rules and regulations set forth by the law.
Experts in forensic science
have specific procedures for assessing, gathering, and conserving all forms of evidence. The physical evidence is generally categorized as living physical evidence and non-living physical evidence. In this context, "living physical evidence" refers to anything that belonged to a living body, such as blood, saliva, hair, etc., "non-living physical evidence" refers to objects that are inorganic in origin, such as fingerprints, tyre prints, glass, or bullets.
Examining psychological evidence
In certain instances, forensic psychologists and psychiatrists are called upon to develop criminal profiles as an additional tool to help investigators sieve through leads. In order to do this, these behavioural scientists will review all of the available data from a crime, which gives them crucial cues about the likely offender. The prospective age, race, and marital status of a criminal are all possible details in a profile.
Reconstructing a crime scene
Forensic research scientists can aid Investigators in learning how a crime was committed, including what tools were used, when the crime occurred, and where it occurred. For example forensics can identify the type of firearm used in a crime by looking at the bullet casings, and a forensic pathologist can tell whether a victim had been abused repeatedly by looking at a body.
Criminals can be located with the aid of evidence that forensic experts have examined. Crime scenes are no different from any other environment in that every time someone interacts with it, something is left behind. Criminals may leave behind evidence that can be used to identify them, such as fingerprints that can be compared to data held in criminal databases or blood, semen, and hair that may provide DNA evidence.
Even though forensic science has significantly aided the criminal justice system, there will always be limits to the application of the law. The criminal justice system places a high value on forensic science and has relied on it for making decisions for centuries. Forensic reports have been viewed as a belief offered by specialists and are regarded as the bible by many courts. However, courts are not obligated by the reports and may rely on additional evidence.
Equally important when solving crimes and getting justice for victims is the application of criminal law and forensic evidence in itself is not enough.
For early professionals and students interested in making a career in crime investigation
, an important step towards building a strong career in crime investigation is to study about laws on criminal procedure
Opt for courses on criminal procedures here to grow in your legal career.