CCP Expert Witness Report Writing 2 — Questions and Answers
Question 1: When an expert witness report contains an opinion that exceeds the expert's area of demonstrated expertise, the court may:
- Accept it with a cautionary instruction
- Strike the opinion as inadmissible (Correct answer)
- Allow opposing counsel to rebut with lay testimony
- Require the expert to retake certification
Correct answer: Strike the opinion as inadmissible
Courts may strike or limit opinions that fall outside the specific expertise the witness has been qualified to offer.
Question 2: The term 'basis of opinion' in an expert witness report refers to:
- The statutory authority permitting expert testimony
- The underlying facts, data, and methods the expert relied upon (Correct answer)
- The credentialing section of the report
- The defendant's prior criminal record
Correct answer: The underlying facts, data, and methods the expert relied upon
The basis of opinion encompasses the data, facts, and methodology the expert used to reach conclusions.
Question 3: In a criminal profiling report, characterizing an unknown subject as 'definitely male' based solely on offense behavior is problematic because:
- Gender cannot be referenced in court reports
- It overstates certainty beyond what behavioral evidence can support (Correct answer)
- Male offenders are a protected class
- Profiling must focus on age before gender
Correct answer: It overstates certainty beyond what behavioral evidence can support
Behavioral indicators may suggest probabilities about gender but rarely justify absolute certainty, and overstatement undermines credibility.
Question 4: Which section of an expert witness report typically lists all case materials reviewed prior to forming an opinion?
- Conclusion
- Methodology
- Materials Reviewed / Evidence Considered (Correct answer)
- Qualifications
Correct answer: Materials Reviewed / Evidence Considered
A 'Materials Reviewed' or 'Evidence Considered' section documents exactly which items the expert examined, ensuring transparency.
Question 5: A defense attorney argues that the profiler's report is 'unduly prejudicial' under FRE 403. The most effective counter-argument is:
- The profiler is federally licensed
- The probative value substantially outweighs any prejudicial effect (Correct answer)
- The jury has the right to all available evidence
- Criminal profiling is not subject to FRE 403
Correct answer: The probative value substantially outweighs any prejudicial effect
Under FRE 403, evidence is excluded only when prejudice substantially outweighs probative value, so demonstrating high probative value is the key counter-argument.
Question 6: When writing about victimology in an expert report, the analyst should:
- Focus exclusively on the victim's criminal history
- Assess lifestyle, routine activities, and risk factors objectively (Correct answer)
- Avoid discussing the victim to prevent sympathy bias
- Limit analysis to the victim's demographic profile only
Correct answer: Assess lifestyle, routine activities, and risk factors objectively
Victimology sections should objectively examine all factors — lifestyle, routine, relationships, and risk level — that illuminate offender selection and crime dynamics.
Question 7: An expert witness report should use passive voice constructions sparingly because:
- Courts require active voice by federal rule
- Passive voice can obscure who performed an action, reducing clarity and accountability (Correct answer)
- Passive voice is associated with academic rather than legal writing
- Jurors statistically distrust passive sentence structures
Correct answer: Passive voice can obscure who performed an action, reducing clarity and accountability
Passive constructions can hide agency and make it unclear who did what, weakening the precision required in legal reports.
CCP Expert Witness Report Writing 2
When an expert witness report contains an opinion that exceeds the expert's area of demonstrated expertise, the court may: