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Marko Law Firm

What evidence is needed to prove workplace retaliation?

To prove retaliation, you generally need to show three things:

  • You engaged in a protected activity — like reporting discrimination, filing a complaint, or cooperating in an investigation
  • Your employer took an adverse action — termination, demotion, pay cut, hostile treatment
  • There's a connection — the adverse action followed your protected activity closely enough to suggest it wasn't a coincidence

Helpful evidence includes:

  • Emails or texts showing the timeline
  • Performance reviews that changed after your complaint
  • Witness accounts from coworkers
  • HR records, written warnings, or disciplinary notices
  • Any communications referencing your complaint

The closer in time the retaliation followed your report, the stronger the inference.

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