Chapter 40 — Self-Check Quiz

24 questions: multiple choice and short answer. Try them closed-book. The answer key is in the collapsed block at the bottom. As the book's last quiz, a few questions reach back across the whole book.

Multiple choice

1. "Forensic scientist," as a job title, is best understood as: - A. A single, well-defined profession that does scene work, lab work, and testimony - B. An umbrella over many distinct professions, each with its own training and certifying body - C. A synonym for crime-scene investigator - D. A medical specialty only

2. For most laboratory bench positions, the chapter argues the essential foundation is: - A. A degree with the word "forensic" in its title - B. The underlying natural science (chemistry, biology, statistics), not the label - C. Prior police experience - D. A board certification obtained before any degree

3. A forensic pathologist is: - A. A laboratory technician with a bachelor's degree - B. A physician (MD/DO) with residency in pathology and a forensic fellowship - C. A crime-scene investigator - D. A certified document examiner

4. Board certification primarily attests to: - A. The scientific validity of the discipline's central claim - B. A defined, tested standard of individual competence in a discipline - C. That the result in a given case is correct - D. A government license to practice

5. The AAFS (American Academy of Forensic Sciences) is: - A. A certifying board that issues credentials to analysts - B. A government regulatory agency - C. The major U.S. professional society organizing the disciplines (meetings, journal, sections), not a certifying board - D. A private crime laboratory

6. The American Board of Criminalistics (ABC) chiefly certifies: - A. Forensic dentists - B. Laboratory criminalistics practitioners (DNA, drug chemistry, fire debris, trace, etc.) - C. Medical examiners - D. Forensic accountants

7. A subtle but important point about the ABFO credential is that: - A. It is required by law in every state - B. The same credential historically covered both valid dental identification and discredited bite-mark comparison - C. It validates bite-mark comparison as a method - D. It certifies digital examiners

8. Continuing competency exists because: - A. Boards want to collect more fees - B. Skills decay, methods evolve, and competence demonstrated once is not competence demonstrated forever - C. It is required only for crime-scene investigators - D. Initial qualification is permanent and never needs renewal

9. The most variable forensic role in terms of who fills it (sworn officer vs. civilian specialist) is: - A. The forensic pathologist - B. The DNA analyst - C. The crime-scene investigator - D. The toxicologist

10. The "most invisible" rung on the education→certification ladder (Figure 40.2) is: - A. The natural-science degree - B. The in-house training period and competency test before independent casework - C. Board certification - D. Testimony

11. Crime-laboratory backlogs are best described as: - A. Always a sign of lazy or incompetent analysts - B. A structural mismatch between demand for testing and funding/staffing/capacity - C. A myth invented by television - D. Unique to digital forensics

12. A key ethical hazard created by the backlog is: - A. That evidence improves with age - B. That pressure to clear cases faster becomes pressure to cut the corners quality depends on - C. That analysts testify too often - D. That certifications expire

13. The chapter says the bench analyst's job "is a courtroom job" because: - A. Analysts spend most of their time arresting suspects - B. Producing a result is only half the work; defending it under oath is the other half - C. Labs are located inside courthouses - D. Analysts are also judges

14. Sustained exposure to scenes, autopsies, and the evidence of violence is reframed in the chapter as: - A. A sign of personal weakness to be hidden - B. An occupational exposure to be managed, like a chemist's exposure to solvents - C. Irrelevant to forensic work - D. A reason no one should enter the field

15. Most U.S. forensic analysts work, administratively, inside: - A. Independent, prosecution-separated institutes - B. Universities only - C. Law-enforcement agencies — the independence problem of Chapter 38 - D. Defense attorneys' offices

16. A forensically literate judge functions as a safeguard mainly because: - A. Judges run the laboratory instruments - B. Judges, as gatekeepers (Chapter 5), decide what counts as science admitted to the courtroom - C. Judges certify experts - D. Judges collect the evidence at scenes

17. The Innocence Project and the broader Innocence Network are examples of: - A. Certifying boards - B. Reform/innocence work that uses DNA and re-examined methods to exonerate the wrongly convicted - C. Crime laboratories - D. Television production companies

18. The chapter warns that an advocate (defense, exoneration, reform) faces: - A. No bias risk, because they help the innocent - B. The mirror image of the prosecution-leaning analyst's bias — reading ambiguous results as exculpatory because that is the wanted answer - C. A legal prohibition on using science - D. A guarantee of being correct

Short answer

19. In two sentences, explain why a board certification attests to a person but not to a method, and why that distinction matters for whether testimony should be trusted.

20. Name three distinct forensic professions the single televised "forensic scientist" actually combines, and state which part of a real case each handles.

21. Why might a chemistry or biology degree be a stronger qualification for a crime-lab bench job than a forensic science degree that is light on laboratory science?

22. State the three defining realities of forensic work from §40.4, and give one ethical or human hazard each creates.

23. A new forensic method you have never heard of is presented to you. Write the single most important question to ask first, and name the reports (the book's yardstick) that justify asking it.

24. In one or two sentences, state the book's closing argument: what does it mean to say forensic science "deals not in certainty but in honesty about uncertainty," and what does that ask of the practitioner?

Answer key (click to expand) **Multiple choice:** 1-B · 2-B · 3-B · 4-B · 5-C · 6-B · 7-B · 8-B · 9-C · 10-B · 11-B · 12-B · 13-B · 14-B · 15-C · 16-B · 17-B · 18-B **Short answer (model points):** **19.** A certification is awarded after an individual passes a defined competency examination in a discipline's accepted practices, so it speaks to *that person's* tested skill; it says nothing about whether the discipline's central claim has been scientifically validated (a question settled by the NAS/PCAST yardstick, not by a credential). It matters because a certified examiner skilled in an *unvalidated* method is still presenting an unvalidated result — the method's validity, not the examiner's credential, decides whether the testimony should be trusted. **20.** Any three, e.g.: **crime-scene investigator** (documents/collects at the scene); **DNA analyst** (interprets genetic profiles at the bench); **forensic pathologist** (autopsy; cause/manner of death); **digital examiner** (phones/computers); **expert witness** (explains the result under oath). The point: television compresses all of these into one character. **21.** Many bench jobs (especially DNA) require specific natural-science coursework and, above all, the *reasoning* skills — contamination, controls, statistics — that come from rigorous science training. A forensic degree light on laboratory science can leave a graduate underqualified for the very jobs it advertises, whereas a strong chemistry/biology degree builds the load-bearing foundation. (A rigorous, FEPAC-accredited forensic program can be excellent; the substance, not the label, decides.) **22.** **Backlog** — pressure to clear cases faster can erode the care quality depends on. **Testimony** — adversarial pressure pushes the expert to overstate (or to seem evasive when refusing to), and overstatement is how wrongful convictions happen. **The toll** — sustained trauma exposure risks secondary traumatic stress and burnout. (Structural embedding/independence is also acceptable as a fourth.) **23.** *"What is the method's error rate, and how do we know — has it been shown by well-designed studies to do what it claims (foundational validity)?"* Justified by the **2009 NAS report** and the **2016 PCAST report**, the book's organizing yardstick. **24.** Forensic science rarely proves; at its best it *excludes*, and it states inclusions only at their true strength with the uncertainty intact. Saying it "deals in honesty about uncertainty" means the practitioner's core duty is the disciplined refusal to claim more than the evidence can bear — said over and over, even when a more certain answer would be more welcome.