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ARTICLE · 07 MAY 2026

Internal Investigations Checklist

Mayer Brown
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As internal investigations surge amid heightened regulatory enforcement and whistleblower complaints, organizations face mounting pressure to handle complex inquiries spanning financial misconduct, HR disputes, and cross-border compliance challenges.

United KingdomCriminal Law
Sam Eastwood
Sam Eastwood
Maura McDevitt
Maura McDevitt
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Internal investigations are on the rise. As governments and regulators step up enforcement measures and whistleblower complaints surge, the number of internal investigations is increasing across a variety of industry sectors. Internal investigations can arise in a wide range of scenarios—including to investigate the veracity of reports by a whistleblower, concerns raised by an employee, third party, regulator, or enforcement agency—and cover a broad spectrum of issues, from allegations of bribery, corruption and fraud, to non-financial misconduct and HR-related disputes. As global regulatory requirements evolve, investigations into both financial and non-financial misconduct are poised to require the engagement of significant company resources. With many employers operating internationally, the number of cross-border investigations have also increased, adding another layer of complexity to an already sensitive process as employers must carefully consider the extent to which local laws

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This Mayer Brown article provides information and comments on legal issues and developments of interest. The foregoing is not a comprehensive treatment of the subject matter covered and is not intended to provide legal advice. Readers should seek specific legal advice before taking any action with respect to the matters discussed herein.

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