Forensic Science Exam Preparation Notes

Major Flexion Creases of the Palm
  • Definition: Major flexion creases are lines in the palm of the hand. They are important in forensic analysis and identification.
  • Regions of the Palm: Understanding where these creases occur can aid in recognizing fingerprints.
Fingerprint and DNA Evidence
  • Fingerprint Patterns: Normal fingerprint patterns can be categorized based on their formations and are essential in forensics.
  • Types of DNA:
    • Nuclear DNA: Used for individual identification.
    • Mitochondrial DNA: Can trace maternal lineage, less unique than nuclear DNA but useful in specific cases.
  • Database: Early data banks like AFIS (Automated Fingerprint Identification System) for matching fingerprints.
Postmortem Interval Estimations
  • Understanding Time: Importance of estimating the postmortem interval in forensic investigations is crucial.
Bodily Fluids and Their Significance
  • Fluorescing Bodily Fluids: Certain bodily fluids can fluoresce, which can help in crime scene investigations.
  • Trauma and Causes of Death: Familiarity with causes of death related to bodily trauma is important.
Firearms and Ballistics
  • Types of Firearms: Understanding differences between various firearms (e.g., revolvers, shotguns, rifles):
    • Single-Action vs. Double-Action revolvers.
    • Different bullet types commonly seen in crime scenes.
  • Ballistic Evidence: Knowledge about firing pin marks, lands, and grooves are crucial in forensic ballistics.
Blood Stain Patterns
  • Classification: Types of blood stain patterns can provide insights into the events of a crime:
    • Identify categories such as high velocity, medium velocity, etc.
  • Factors Influencing Bloodstains: Understand variables like viscosity and surface tension that affect how blood spreads.
Digital Evidence and Cyber Crime
  • Types of Cyber Crimes: Familiarity with hacking, phishing, and identity theft in the digital landscape.
  • Digital Evidence: Importance of collecting and analyzing digital evidence from various media sources.
Forensic Pathology Concepts
  • Pathology Role: Understanding of how forensic pathology relates to legal investigations.
  • Pioneers of Fingerprinting: Familiarization with key contributors in the field, such as Henry Faulds and Alphonse Bertillon.
Anthropology in Forensics
  • Bone Measurements: Use of anthropometry for identifying individuals based on skeletal remains.
  • Insect Colonization: Knowledge on which insects inhabit buried remains can provide clues about the time of death.
Additional Forensic Science Terminology
  • Criminal vs. Civil Law: Understanding the distinctions between different legal frameworks.
  • Chemical Etching: Utilized in revealing serial numbers on firearms.
  • Types of Fingerprint Powders: Knowledge of at least three types of powders used in securing fingerprints.
  • Impressions: Different types of impressions: patent (visible), latent (invisible), and plastic (molded).
Exam Format
  • Expect a 50 question exam consisting of true/false and multiple-choice questions covering the discussed topics.