What are the principles involved in forensic science?

What 3 main sciences are used in forensic science?

Common forensic science laboratory disciplines include forensic molecular biology (DNA), forensic chemistry, trace evidence examination (hairs and fibers, paints and polymers, glass, soil, etc.), latent fingerprint examination, firearms and toolmarks examination, handwriting analysis, fire and explosives examinations, …

What are the principles to be followed in a crime scene?

The actions of control, preserve, record, recover, and reconstruct, are the core principles of crime scene examination.

What are the five principles of CSI?

Summary. In this chapter, we have discussed the critical issues of crime scene management, evidence identification, evidence location, evidence collection, evidence protection, and proper documentation. These are the most important skills that an investigator can learn and incorporate into their investigative toolkit.

What are the basic principles of forensic science?

Here are the 7 principles of Forensic science

  • Law of Individuality. …
  • Law of Progressive Change. …
  • Principle of Comparison. …
  • Principle of Analysis. …
  • Locard’s principle of Exchange. …
  • Law of Probability. …
  • Law of Circumstantial facts.
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What are the 10 areas of forensic science?

What are the 10 areas of forensic science?

  • Trace Evidence Analysis.
  • Forensic Toxicology.
  • Forensic Psychology.
  • Forensic Podiatry.
  • Forensic Pathology.
  • Forensic Optometry.
  • Forensic Odontology.
  • Forensic Linguistics.

What are the 4 major crime labs?

These four major federal crime labs help investigate and enforce criminal laws beyond the jurisdictional boundaries of state and local forces: FBI (Federal Bureau of Investigation), DEA (Drug Enforcement Agency), Bureau of Alcohol, Tobacco, Firearms and Explosives, and U.S. Postal Inspection Service.

What are the principles of investigation?

12 Basic Principles of Internal Investigations

  • Be fair and objective. …
  • Do not pre-judge. …
  • Avoid the appearance of bias. …
  • Plan and outline the investigation before starting. …
  • Investigate promptly. …
  • Keep the investigation separate and independent from the stakeholders. …
  • Never mislead a witness. …
  • Protect confidentiality.

What is the concept and principle of criminal investigation?

Applied to the criminal realm, a criminal investigation refers to the process of collecting information (or evidence) about a crime in order to: (1) determine if a crime has been committed; (2) identify the perpetrator; (3) apprehend the perpetrator; and (4) provide evidence to support a conviction in court.

What are the six phases of the forensic investigation process?

What are the six phases of the forensic investigation process? This model was the base fundament of further enhancement since it was very consistent and standardized, the phases namely: Identification, Preservation, Collection, Examination, Analysis and Presentation (then a pseudo additional step: Decision).

What are 4 different types of crime scenes?

Different types of crime scenes include outdoors, indoor, and conveyance. Outdoor crime scenes are the most difficult to investigate. The exposure to elements such as rain, wind, or heat, as well as animal activity, contaminates the crime scene and leads to the destruction of evidence.

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What is the golden rule of crime scene investigation?

The Golden Rule in Criminal Investigation

When it comes to crime scenes, the golden rule is “Do not touch, alter, move, or transfer any object at the crime scene unless it is properly marked, measured, sketched and/or photographed.” This rule is to be followed every day, in every scene.