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Workplace Investigation FAQs

How to investigate complaints, who should investigate, confidentiality, and the process failures that turn complaints into claims.

Last updated: July 03, 2026 • 15 answers in this category

The Investigation Scope Ladder — three tiers, decided at intake

Controlling authority: NLRA section 7 limits on blanket confidentiality instructions, and for public bodies the Texas Public Information Act.

The Investigation Scope Ladder — three tiers, decided at intake Faulkner HR Solutions. Original framework. Cite as: Faulkner, T.W. The Investigation Scope Ladder. Faulkner HR Solutions.
TierScopeWhat it coversWhy the tier matters
Tier 1BoundedOne complainant, one respondent, a defined witness and document limitThe limits are written before the work starts, so the scope cannot drift silently.
Tier 2ExpandedMultiple allegations, respondents, or sites within a stated ceilingFindings are issued allegation by allegation, so a weak allegation does not contaminate a strong one.
Tier 3OpenScope genuinely unknowable at intake — an anonymous complaint, or no named respondentThe honest answer at intake is that nobody knows how big this is. Pretending otherwise is how investigations overrun.

The investigation sequence, and where employers lose control of it

The investigation sequence, and where employers lose control of itSix stages of a workplace investigation from intake through closure, showing the decision that has to be made at each stage.1INTAKEScope itWhich tier? Writtenbefore the firstinterview.2HOUR 0–24Interim measuresSeparation, notexile. Never movethe complainant.3DAY 1–3PreserveLitigation hold onemail, devices,access logs.4DAY 3–15InterviewComplainant, respondent,witnesses. Openquestions first.5ON CLOSEFindAllegation byallegation. Morelikely than not.6AFTERClose the loopTell both partiessomething. Silencereads as a finding.
Figure The investigation sequence. Scope is decided at intake or it is decided by drift. Preservation happens in the first days or it does not happen. And the closure step — telling both parties something — is the one most often skipped, which is how a completed investigation still produces a retaliation claim. Faulkner HR Solutions. Original framework, 2026, applying The Investigation Scope Ladder. Cite as: Faulkner, T.W. Faulkner HR Solutions.
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Curated and reviewed by Dr. Thomas W. Faulkner, DBA, MBA, MSML, SPHR, LSSBB, principal consultant at Faulkner HR Solutions.