DRE Communication & Stakeholder Relations 2 — Questions and Answers
Question 1: When a DRE officer is called as an expert witness, which communication approach is most effective during cross-examination?
- Respond only with yes/no to limit exposure
- Answer questions directly and calmly, staying within the scope of DRE expertise (Correct answer)
- Volunteer additional information to demonstrate knowledge
- Defer all technical questions to the arresting officer
Correct answer: Answer questions directly and calmly, staying within the scope of DRE expertise
Expert witnesses should answer directly and calmly, limiting responses to their area of expertise to maintain credibility.
Question 2: A defense attorney challenges the DRE's evaluation by claiming the 12-step process is unreliable. The DRE's most appropriate courtroom response is to:
- Argue aggressively to defend the protocol
- Explain the scientific basis and NHTSA validation studies supporting the DRE protocol (Correct answer)
- Acknowledge the protocol is flawed but still useful
- Request the judge dismiss the challenge without explanation
Correct answer: Explain the scientific basis and NHTSA validation studies supporting the DRE protocol
The DRE should calmly reference peer-reviewed validation studies and NHTSA endorsement to establish the protocol's credibility.
Question 3: Which stakeholder group is primarily responsible for authorizing a DRE evaluation at a DUI checkpoint?
- The DRE officer independently
- The arresting or investigating officer who detects signs of impairment (Correct answer)
- The prosecutor assigned to the case
- The state toxicology lab
Correct answer: The arresting or investigating officer who detects signs of impairment
The arresting officer who observes signs of drug impairment typically requests a DRE evaluation.
Question 4: When briefing a prosecutor before trial, a DRE officer should prioritize communicating:
- Only the toxicology results
- The 12-step evaluation findings, observed indicators, and the drug category opinion (Correct answer)
- The subject's prior criminal record
- Witness statements from bystanders
Correct answer: The 12-step evaluation findings, observed indicators, and the drug category opinion
Pre-trial briefings should cover all DRE findings including step-by-step results and the drug category conclusion to prepare the prosecutor.
Question 5: A DRE officer discovers that a fellow officer misrepresented DRE findings in a report. The correct course of action is to:
- Ignore it to maintain team cohesion
- Directly confront the officer publicly at the scene
- Report the discrepancy through proper supervisory channels (Correct answer)
- Alter your own report to match the other officer's account
Correct answer: Report the discrepancy through proper supervisory channels
Integrity in documentation requires reporting discrepancies through proper supervisory channels to preserve the evidentiary record.
Question 6: During a post-evaluation debrief with the arresting officer, the DRE concludes the subject showed indicators consistent with CNS stimulants. The DRE should communicate this opinion as:
- A definitive diagnosis of cocaine use
- An opinion based on observed indicators consistent with CNS stimulant impairment (Correct answer)
- Speculation without toxicological confirmation
- Grounds for immediate revocation of the subject's driver's license
Correct answer: An opinion based on observed indicators consistent with CNS stimulant impairment
DRE opinions are expressed as category-based conclusions supported by observations, not specific substance diagnoses.
Question 7: Which communication practice best supports the chain of custody when a DRE hands off a blood specimen to a lab technician?
- Verbal instruction only
- Text message confirmation to the lab
- Documented transfer with both parties signing the chain-of-custody form (Correct answer)
- Email notification to the prosecutor
Correct answer: Documented transfer with both parties signing the chain-of-custody form
Proper chain-of-custody documentation requires a signed transfer record acknowledged by both the DRE and the receiving lab technician.
DRE Communication & Stakeholder Relations 2
When a DRE officer is called as an expert witness, which communication approach is most effective during cross-examination?