ETX 20 Midterm 2 Review Questions_Fall 2023

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ETX 20 Midterm 2 Review – Fall 2023

*What’s different in this version? Kept relevant questions from the last version, increased the number of questions to improve the breath of topics were covered relative to test knowledge demand. **Remember, these are designed to get you to think about the subject matter relevant to what will be tested. Think about it as written, in reverse, and know the details of the subject matter for when other aspects and elements pop up in any 1 of the 50 questions. ***This study guide is broken down by how they appeared in lecture but may appear in random order dependent upon the version of the test. Also, it is close to representative of the # of questions in each section (basically if you multiplied by ~4 that’s how each section is weighted).

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****Prepare early, refresh the evening prior, get rest and nourished, (or as many things in your favor as possible) and give yourself the chance to put your best foot forward! We believe in you! That’s why you’re here!!! Don’t forget that part.

Lecture 9: Case Study – No Body Homicide in Yolo County (1) 1) Forensic evidence was used to scientifically demonstrate that the victim likely lost a lethal amount of blood involved _ a. The upholstery attachment used in the cover-up of the crime was measured for fluid intake volume capacity and blood loss calculation designed to assess potential lost blood volume. b. Mass Spectroscopy assessment of evidence blood samples which correlated with the volume of blood loss at the crime scene. c. gunshot wound diameter and blood loss calculation designed to assess lost blood volume d. experiments designed to assess lost blood volume.

Lecture 10: Expert Testimony (2) 2) Which decision came first, Plaza, Frye, or Daubert and did the strictness of scientific technique admissibility increase or decrease? a. Plaza; increase b. Frye; increase c. Daubert; increase d. Frye; decrease 3) What was NOT an impact of the Daubert and Kumho cases? a. Soft Science required validation b. The Frye standard was strengthened c. Traditional theories were rejected

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d. Inductive reasoning was encouraged Lecture 11: Fingerprints – Friction Ridge Examination (2) 4) Which of the following would NOT create a patent fingerprint? a. Blood b. Ink c. Oil deposits d. A and B 5) Fingerprint Identification Analysis failed __ Daubert principal standards for determining whether a technique is scientifically valid. a. 3 of the 4 b. 2 of the 3 c. 3 of the 3

d. 2 of the 4 Lecture 12: Firearms and Toolmark Evidence (2) 6) Which of the following is NOT a class and/ or identification characteristics applied to a bullet? a. Direction of Twist b. Number and width of Land and Groove Impressions c. Degree of Twist d. Caliber 7) How is Firearms Analysis considered a forensic science given how subjective each students answers were on the assignment #2 homework and no set criteria for any ID?

a. Bullet comparison is done with comparison microscope at 30 times magnification which would reduce assessment variability. b. No 2 barrels are alike as random manufacturing methods leave random marks. c. Both a and b d. Daubert and Kumho decisions reduced the effectiveness of Firearms Analysis testimony as there is no set criteria for ID. Lecture 13: Trace Evidence – Hair and Fibers (1) 8) Which is not an approach used to analyze hair evidence from a crime scene? a. Mitochondrial DNA analysis on the hair follicle

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b. Nuclear DNA analysis on hair shaft if the hair follicle is not present c. Microscopic examination d. GC-MS analysis on both the hair follicle and shaft Lecture 14: Case Study – How Trace Evidence Solved A Homicide (2) 9) Which was NOT considered to be trace evidence recovered from the scene? a. Dry leaf, plant matter b. Plastic tarp debris c. Paint samples d. Gunshot residues 10) What did the nature of the victim's urine stain point to?

a. Suicide was improbable as the underwear was stained but the pants were not. b. Homicide was unlikely as the evidence gave no indication of a struggle or violent crime. c. The exact time of death was able to be determined. d. None of the above Lectures 15-18: Toxicology, Illicit Drugs & Alcohol (3) 11) Which sample types allow for headspace analysis of alcohol via GC-MS, either directly or indirectly? a. Saliva and Blood b. Blood and Feces c. G.I. Fluids and Urine

d. Blood and Urine 12) Which of the following are Presumptive tests? a. Color Test for Methamphetamine b. Microscopic Examination for Marijuana c. Gas Chromatography/Mass Spectrometry d. Both A and B 13) What does ADME stand for? a. Absorption, Distribution, Metabolism, Excretion b. Absorption, Distribution, Metabolism, Elimination c. Assimilate, Destroy, Metabolism, Elimination d. Absorption, Dissection, Metabolism, Excretion

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Answer Key Midterm 2 Review Answer Key # Answer 1 D 2 B 3 B 4 C 5 A 6 C 7 C 8 D 9 D 10 A 11 D 12 A 13 A

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