Does California's Whistleblower Law Protect Workers Who Reported a Violation They Didn't Fully Understand?

Yes — and a California appeals court ruling in a produce company case makes that protection explicit. An employee who acted on a good-faith, reasonable belief that his employer was breaking the law is protected from retaliation under Labor Code Section 1102.5, even if his understanding of the law turned out to be mistaken. The decision is a significant win for California workers without formal legal training who speak up about workplace violations.

Case: Contreras v. Green Thumb Produce, Inc.

Court: California Court of Appeal, Fourth Appellate District, Division One

Case No.: D085440

Get to Know the Plaintiff: Contreras v. Green Thumb Produce

Manuel Contreras worked in the sanitation department at Green Thumb Produce, Inc. While employed there, Contreras noticed that he was being paid less than coworkers who he believed were performing similar duties. Unsure of his legal rights, he took a step that most employers should applaud: he researched the issue. He contacted the California Labor Commissioner's Office, where he spoke with a deputy labor commissioner who told him there might be a violation of the California Equal Pay Act and directed him to the Labor Commissioner's website for additional information. Contreras reviewed the FAQ document posted there — which was itself incomplete and ambiguous — and formed the belief that his employer was breaking the law. He printed out the Labor Commissioner's FAQ and brought it, along with his concerns, to his employer's human resources department. Shortly after that meeting, Green Thumb terminated him, citing violations of company policy.

Get to Know the Defendant: Contreras v. Green Thumb Produce

Green Thumb Produce, Inc. is a produce company operating in California whose sanitation and production employees are subject to California's Labor Code wage and hour requirements. After Contreras reported his pay concerns to HR, the company terminated his employment. At trial, Green Thumb argued that Contreras's protection under Labor Code Section 1102.5 should not apply because his belief that the Equal Pay Act was being violated was legally mistaken — the EPA only prohibits pay disparities based on sex, race, or ethnicity, and Contreras had not alleged that his lower pay was based on any of those protected characteristics.

What Are the Allegations in the Complaint?

Contreras filed suit in Riverside County Superior Court alleging whistleblower retaliation under Labor Code Section 1102.5(b), along with additional claims. According to the complaint and subsequent proceedings:

● Contreras noticed he was paid less than coworkers performing similar work and, in good faith, believed this constituted a violation of the California Equal Pay Act

● After receiving guidance from a deputy labor commissioner suggesting a potential violation existed, Contreras presented his concerns — along with the official FAQ — to human resources

● Green Thumb terminated his employment shortly after he raised the concern, citing a company policy violation

● A jury found in Contreras's favor on all claims, awarding more than $182,000 in damages

● The trial court then granted Green Thumb's motion for judgment notwithstanding the verdict on the whistleblower claim, reasoning that because Contreras had misunderstood the EPA, he lacked a legally sound basis for his report

● The Court of Appeal reversed the trial court's ruling and restored the jury's verdict

What Was the Main Question in the Case?

The central legal question was whether Labor Code Section 1102.5(b) requires an employee to be legally correct about the alleged violation they report — or whether a reasonable, good-faith belief that the law was being broken is sufficient. The Court of Appeal held clearly that a reasonable belief is enough, and that whether a belief was objectively reasonable is a question for a jury to decide, not a matter for a judge to resolve as a question of law. The court emphasized that Contreras — a worker with a 10th-grade education — had not simply invented a concern: he had been told by a government official that there might be a violation, and he had reviewed an official government FAQ that was itself incomplete and ambiguous. A jury of his peers reviewed all of this and found his belief was reasonable. The Court of Appeal restored the jury's verdict.

Why Does the Case Matter to California Employees?

While this case was filed in Riverside County, it interprets a California statute that applies statewide — Labor Code Section 1102.5 — and its implications extend to workers across California in every industry.

● California whistleblower law is designed to encourage employees to report suspected violations without fear of retaliation — including employees who are not lawyers, who may not understand every detail of the law they believe is being broken

● The ruling confirms that the relevant standard is what a reasonable layperson in the employee's position would believe — not what a judge or attorney with legal training would conclude after careful review

● This is especially important for lower-wage workers, workers with limited English proficiency or formal education, and workers who rely on government agencies and official materials for guidance on their rights

● The decision also highlights a practical point: employees who receive incomplete or ambiguous guidance from official government sources — like the Labor Commissioner's FAQ in this case — cannot be penalized for relying on it in good faith

A Brief Overview of the Case

● During employment: Contreras notices he is being paid less than coworkers performing similar work; contacts the California Labor Commissioner's Office and is told by a deputy there may be a violation

● Contreras reports to HR: He brings his concerns and the Labor Commissioner's FAQ to Green Thumb's human resources department

● Shortly after: Green Thumb terminates Contreras's employment, citing a company policy violation

● Trial: Contreras files suit in Riverside County Superior Court; a jury finds in his favor on all claims and awards more than $182,000 in damages

● Post-trial: Green Thumb moves for judgment notwithstanding the verdict on the whistleblower claim; the trial court grants the motion, finding Contreras's legal interpretation was wrong and therefore he lacked "reasonable cause" to believe a violation occurred

● December 15, 2025: The California Court of Appeal, Fourth Appellate District, Division One (Case No. D085440), reverses the trial court, reinstates the jury's verdict, and holds that a good-faith, reasonable belief — even a legally mistaken one — is sufficient for whistleblower protection under Labor Code Section 1102.5(b)

FAQs: Contreras v. Green Thumb Produce

Q: What is Labor Code Section 1102.5 and who does it protect?

A: California Labor Code Section 1102.5 is the state's primary whistleblower protection statute. It prohibits employers from retaliating against employees who report, or who the employer believes may report, violations of state or federal law to a supervisor, another employee with authority to investigate, or a government agency. It applies to virtually all California employees regardless of industry or position.

Q: Does a California employee have to be right about the law to be protected as a whistleblower?

A: No. The Court of Appeal in Contreras made clear that Section 1102.5(b) protects employees who act on a reasonable, good-faith belief that a law was being violated — even if that belief turns out to be legally incorrect.

Q: What does "reasonable cause to believe" mean in the context of whistleblower law?

A: It means the employee's belief must be one that a reasonable person in the same circumstances — with the same information and the same level of legal knowledge — could have formed. It is not evaluated from the perspective of a lawyer or a judge. Whether a belief was reasonable is generally a question of fact for a jury to decide.

Q: Can I report a wage concern to HR and be protected from retaliation?

A: Yes. Reporting wage concerns to a supervisor or a human resources representative qualifies as protected activity under Labor Code Section 1102.5, as long as you have reasonable cause to believe a violation occurred. You do not need to report to an outside agency to be protected.

Q: What should I do if I was fired after reporting a wage or labor law concern at work?

A: Document the timeline of events: when you raised your concern, who you spoke to, what was said, and when the adverse action followed. The closer in time the termination follows the complaint, the stronger the circumstantial evidence of retaliation. Legal counsel can help you evaluate your options under Section 1102.5 and other applicable California protections.

Q: Is there a time limit for bringing a whistleblower retaliation claim in California?

A: Yes. California Labor Code Section 1102.5 claims generally have a three-year statute of limitations under Code of Civil Procedure Section 338. Other whistleblower statutes may have different time limits. Acting promptly after experiencing retaliation is important to preserve your rights.

Were You Fired for Reporting a Workplace Concern?

Contreras v. Green Thumb Produce shows that California's whistleblower protections are built for real workers — not just lawyers — and that good-faith reporting of suspected violations is protected even when the legal analysis is imperfect. If you were terminated or retaliated against after raising a concern about wages, safety, or any other workplace violation, contact Blumenthal Nordrehaug Bhowmik DeBlouw LLP. Knowledgeable employment law attorneys are ready to assist you in law firm offices located in Riverside, San Francisco, Sacramento, San Diego, Los Angeles, and Chicago.