Opposition to Unlawful Activity: What California Employees Need to Know

Most employees don’t realize that simply speaking up about something illegal at work is often protected by law. In California, workers cannot legally be punished for opposing unlawful conduct in the workplace — even if they aren’t the person directly affected.

That means if you report wage theft, discrimination, harassment, unsafe working conditions, fraud, retaliation, or other unlawful behavior, your employer generally cannot retaliate against you for doing so.

Unfortunately, retaliation still happens all the time.

I regularly speak with employees who suddenly experience:

• write-ups after years of positive reviews

• reduced hours

• demotions

• exclusion from meetings

• hostility from management

• termination shortly after raising concerns

And many of them initially think:
“I must be overreacting.”

You’re probably not.

Timing matters. Patterns matter. Documentation matters.

One of the biggest mistakes employees make is assuming retaliation has to be obvious. In reality, employers often try to create a paper trail after someone raises concerns. They may suddenly claim “performance issues” or attempt to reframe the employee as “difficult.”

California law provides strong protections for whistleblowers and employees who oppose unlawful activity, but acting quickly is important. Emails, texts, performance reviews, and timelines can become critical evidence.

If you believe you were punished for speaking up about unlawful conduct at work, it’s important to understand your rights before signing anything or walking away from the situation.

— Evan Gaines, Employment Attorney