- Erosion of impartiality between complainant and respondent.
- Premature credibility judgments reached before the record is complete.
- Leading questions that shape the account rather than elicit it.
- Trauma-informed technique applied to one party and not the other.
- Age-inappropriate questioning of minors under Title IX and DASA.
- Cross-witness contamination in sequenced peer interviews.
- Documentation that does not anticipate OCR review, appeal, or civil discovery.
Each of these is an interview problem, not a policy problem. The objective is not to confirm what the institution already suspects; it is a fair, complete, defensible record. The Suppression Database is a case-law diagnostic of the same interview-contamination patterns that overturn findings on appeal.