Why Internal Investigations Fail Before They Start – 8 Critical Mistakes That Weaken Fairness, Credibility and Defensibility

May 22, 2026
Guides | Documentation
Internal workplace Investigations
Normand Borduas MPA

This resource outlines eight critical mistakes frequently observed in internal investigations and explains how these failures can expose organizations to legal challenges, reputational damage, regulatory scrutiny, and operational risk. Drawing from investigative best practices and digital evidence considerations, the guide provides practical insights to help organizations strengthen investigative governance, preserve evidentiary integrity, and improve the fairness and defensibility of workplace investigations.

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Internal workplace investigations often fail long before conclusions are reached — not because misconduct did not occur, but because the investigative process itself was flawed from the outset. Weak procedures, poor evidence handling, conflicts of interest, inconsistent documentation, and failures in procedural fairness can significantly undermine the credibility, defensibility, and legal reliability of an investigation. In highly sensitive matters involving employee misconduct, insider threats, harassment, fraud, or regulatory concerns, organizations must recognize that the integrity of the process is just as important as the findings themselves.

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