A legally defensible workplace investigation report should be neutral, thorough, and supported by documented evidence.

Core elements typically include:

  • A clear statement of the allegations
  • The scope of the investigation
  • Identification of witnesses interviewed
  • A summary of relevant evidence reviewed
  • Credibility assessments (where appropriate)
  • Reference to applicable company policies
  • Findings of fact
  • A reasoned conclusion

The report should avoid speculation, conclusory statements without support, or biased language.

In California employment litigation, poorly written or inconsistent investigation reports frequently undermine an employer’s defense. The tone must remain objective and fact-based.