What properties are used in forensic analysis?

What are physical properties in forensic science?

Physical properties are properties that can be measured without chang- ing the identity of the evidence. For example, when forensic scientists cal- culate the density of glass, they divide the mass of the glass by its volume. Measuring mass and volume does not affect the chemical makeup of the glass.

What are the 4 types of forensic analysis?

Five common types of forensic analysis, are deoxyribonucleic acid, or DNA, computer, handwriting, bloodstain and statement analysis.

What does forensic analysis include?

Forensic analysis is often used for providing evidence in court hearings, especially in criminal investigations. It employs wide range of investigative procedures and technologies.

What are physical and chemical properties in forensic science?

A physical property is one which can be observed without changing the sample. A chemical property can only be observed by causing a chemical change.

What are 2 intensive properties of evidence used in forensics?

To compare glass fragments, a forensic scientist evaluates two important physical properties: density and refractive index.

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How are physical and chemical properties used to identify?

Characteristics such as melting point, boiling point, density, solubility, color, odor, etc. are physical properties. Properties that describe how a substance changes identity to produce a new substance are chemical properties. … Physical and chemical properties can be used to classify a substance as ionic or molecular.

What are the 7 types of evidence?

Terms in this set (7)

  • Personal Experience. To use an event that happened in your life to explain or support a claim.
  • Statistics/Research/Known Facts. To use accurate data to support your claim.
  • Allusions. …
  • Examples. …
  • Authority. …
  • Analogy. …
  • Hypothetical Situations.

What are the 4 types of evidence?

The Four Types of Evidence

  • Real Evidence. Real evidence is also known as physical evidence and includes fingerprints, bullet casings, a knife, DNA samples – things that a jury can see and touch. …
  • Demonstrative Evidence. …
  • Documentary Evidence. …
  • Witness Testimony.

What are the different types of forensic testing?

6 Major Types Of Forensics/ CSI Evidence Presented At Trial

  • Finger Print Analysis. Along with DNA, fingerprints are a main identifier for who we are. …
  • Forensic DNA Analysis. …
  • Handwriting Exemplars. …
  • Blood Splatter Analysis. …
  • Forensic Pathology. …
  • Ballistics.

What does a forensic analysis do?

Forensic analysts are tasked with collecting and/or examining crime scene evidence to learn more about the person who committed the offense or to include or eliminate a specific person as a potential suspect.

Which types of data does forensic analysis use?

Digital forensics professionals may use decryption, reverse engineering, advanced system searches, and other high-level analysis in their data forensics process. Two types of data are typically collected in data forensics. This first type of data collected in data forensics is called persistent data.

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How do you do a forensic analysis?

The forensic analysis process includes four steps:

  1. Use a write-blocker to prevent damaging the evidentiary value of the drive.
  2. Mount up and/or process the image through forensics software.
  3. Perform forensic analysis by examining common areas on the disk image for possible malware, evidence, violating company policy, etc.