CFC Courtroom Presentation & Testimony 5 — Questions and Answers
Question 1: When an expert witness is sequestered under a court's witness exclusion order, they may generally still:
- Observe other witnesses' testimony to prepare their own
- Review trial transcripts of prior testimony while sequestered (Correct answer)
- Discuss their expected testimony with retaining counsel between sessions
- Watch live video of the proceedings from an adjacent room
Correct answer: Review trial transcripts of prior testimony while sequestered
While sequestered experts cannot observe live testimony, they may typically review transcripts of testimony already given when permitted by the court.
Question 2: In preparing for cross-examination, a forensic consultant should anticipate the 'three Bs' of cross-examination attacks, which target:
- Bias, basis, and blunders (errors) (Correct answer)
- Background, billing, and breadth of opinions
- Books, bench trials, and bias
- Burden of proof, best evidence, and bias
Correct answer: Bias, basis, and blunders (errors)
Skilled cross-examiners typically attack expert bias (financial or other), the basis of opinions, and errors or blunders in the expert's work.
Question 3: A forensic consultant is asked to render opinions on a topic slightly outside their core expertise but within an adjacent discipline they have studied. The appropriate action is to:
- Accept and opine fully since any expert knowledge is sufficient
- Decline entirely and refuse to discuss the topic at all
- Disclose the limits of their expertise and opine only to the extent their knowledge reliably supports (Correct answer)
- Let retaining counsel decide what opinions to offer
Correct answer: Disclose the limits of their expertise and opine only to the extent their knowledge reliably supports
Experts must be transparent about the boundaries of their expertise and limit opinions to areas where they have reliable knowledge.
Question 4: The 'ultimate issue' rule, as modified in the Federal Rules of Evidence, allows expert witnesses to:
- Testify about the ultimate legal conclusion, including whether a defendant is guilty
- Express opinions on ultimate factual issues, but not on legal conclusions reserved for the court (Correct answer)
- Never testify about any issue that goes to the heart of the case
- Decide the final outcome in bench trials when technical expertise is required
Correct answer: Express opinions on ultimate factual issues, but not on legal conclusions reserved for the court
FRE 704 permits expert opinions on ultimate factual issues but prohibits stating pure legal conclusions (e.g., 'the defendant was negligent as a matter of law').
Question 5: When a forensic consultant's opinion rests on data provided by others that was not independently verified, the expert should:
- Present the opinion as fully reliable since the data source is the retaining party
- Disclose the reliance on third-party data and acknowledge the limitation that it was not independently verified (Correct answer)
- Refuse to form any opinion based on unverified data
- Omit reference to the data source in testimony
Correct answer: Disclose the reliance on third-party data and acknowledge the limitation that it was not independently verified
FRE 703 permits reliance on data not independently verified if experts in the field reasonably rely on such data, but this reliance must be disclosed.
Question 6: Which courtroom demeanor characteristic most consistently undermines expert credibility with jurors, according to trial research?
- Speaking slowly and clearly
- Using organized, structured responses
- Appearing defensive, argumentative, or condescending toward attorneys (Correct answer)
- Acknowledging uncertainty in probabilistic conclusions
Correct answer: Appearing defensive, argumentative, or condescending toward attorneys
Research consistently shows that defensive or condescending expert behavior damages juror trust more than almost any substantive challenge to methodology.
Question 7: A forensic consultant retained as a non-testifying consulting expert later becomes a testifying expert on the same case. This transition:
- Has no impact on discovery since the role change is internal
- May require disclosure of all prior work product previously protected as consulting-expert material (Correct answer)
- Automatically shields all prior consulting work from disclosure under the work-product doctrine
- Is prohibited by professional ethics rules in all jurisdictions
Correct answer: May require disclosure of all prior work product previously protected as consulting-expert material
Converting a consulting expert to a testifying expert can waive work-product protection for materials previously prepared in the consulting role.
CFC Courtroom Presentation & Testimony 5
When an expert witness is sequestered under a court's witness exclusion order, they may generally still: