California law protects a person who reports sexual harassment they saw, backs up a coworker's complaint or testifies about it. Punishing a witness for any of those is illegal. A witness who works in the middle of the harassment can also have a claim of their own.
This page is for the coworker who saw or heard it, the employee who has been asked for a statement, the person who has been handed a subpoena, and the supervisor who was told in confidence. It also explains, for the person who was harassed, how witnesses fit into a case. It covers what is protected, when a bystander can sue, whether you have to report, and what to do at each stage.
The short answer
- You may report harassment that was aimed at someone else. Nothing in the law says only the target can complain.
- Retaliation against a witness is illegal. The law protects anyone who opposes harassment, files a complaint, testifies or assists in a proceeding.
- You do not have to be right about the law. A reasonable, good faith belief that what you saw was unlawful is enough.
- A coworker has no legal duty to report. A supervisor is in a different position. Once a supervisor knows, the company is treated as knowing.
- Seeing it can give you your own claim if it happened in your immediate work area, you personally witnessed it, and it was severe or pervasive.
- If you are subpoenaed you must appear. Your job is protected and you are paid a witness fee.
- No company policy or agreement can stop you from testifying or from talking to the California Civil Rights Department.
How the law protects a witness
The Fair Employment and Housing Act makes it unlawful for an employer or any other person to fire or otherwise discriminate against someone because that person opposed a forbidden practice, filed a complaint, testified or assisted in any proceeding under the Act. The table shows how that applies to things witnesses actually do.
| What you did | Why it is protected |
|---|---|
| Told HR or a manager what you saw | Opposing a practice you reasonably believe is unlawful is protected, whether or not anyone files a formal complaint |
| Backed up a coworker in the company's investigation | The U.S. Supreme Court has held that answering questions in an employer's internal investigation is protected under federal law. California also requires an employer's written policy to promise no retaliation for taking part in an investigation |
| Helped a coworker contact the Civil Rights Department | Assisting or advising another person who seeks the department's help is protected by regulation |
| Gave a statement to a government agency, or testified | Testifying or assisting in a proceeding is named in the statute itself |
| Were named as a possible witness | The regulations protect a person the employer sees as a potential witness in a Civil Rights Department proceeding, even before that person has said a word |
| Refused to help cover it up or to punish the person who complained | Refusing an order you reasonably believe is unlawful is protected activity. Labor Code section 1102.5 separately protects refusing to take part in a violation of law |
| Talked with coworkers about what was going on | An employer may not discipline an employee for disclosing information about working conditions |
What counts as retaliation. Firing, demotion, suspension, a pay cut, reduced hours, a worse schedule, a transfer, a sudden run of bad reviews, or being passed over. The California Supreme Court has said the question is whether the action materially affects the terms and conditions of the job, and that a series of smaller acts can add up to enough.
What is not protected. A statement you know to be false. The protection is for honest reports and truthful testimony. An employer can also still apply ordinary discipline for reasons unrelated to what you reported.
More on how these claims work is in the California workplace retaliation guide.
When a witness has a claim of their own
You do not have to be the target to be harmed. California recognizes several situations in which a bystander can bring a claim.
| Situation | Possible claim | What has to be shown |
|---|---|---|
| You regularly see or hear a coworker being harassed in your work area | Hostile work environment based on conduct directed at others | You personally witnessed it, it took place in your immediate work environment, it was severe or pervasive, and a reasonable person in your position would find the workplace hostile |
| A supervisor gives jobs, shifts or promotions to people who go along with sexual advances | Hostile work environment based on widespread sexual favoritism | The favoritism was widespread enough to send the message that sexual compliance is how to get ahead. One relationship is usually not enough |
| You were punished after reporting or giving a statement | Retaliation, and wrongful termination if you were fired | You did something protected, the employer took action against you, and one caused the other |
| You were punished because your spouse, partner or relative at the same company complained | Retaliation under federal law | The U.S. Supreme Court has allowed a claim by an employee fired after his fiancee complained. Federal law applies to employers with 15 or more employees |
Hearing about it is different from seeing it. For your own hostile environment claim, the courts generally require that you witnessed the conduct yourself or it reached you in your own work area. Harassment in another department that you only heard about later does not usually change your own working conditions in the legal sense. You can still report it, and you are still protected when you do.
The elements of a hostile environment claim are explained on the hostile work environment page.
Do you have to report what you saw?
If you are a coworker. California law does not require an ordinary employee to report harassment of someone else. Your employer's policy may ask you to, and reporting is protected, but staying silent is not illegal.
If you are a supervisor or manager. Your position is different in three ways.
- State regulations require an employer's harassment policy to instruct supervisors to report any complaint to a designated company representative. A supervisor who keeps a complaint private is usually breaking that policy.
- The company is liable for harassment by a coworker or outsider when it, or its agents or supervisors, knew or should have known and did not take immediate and appropriate corrective action. What you know, the company knows.
- A supervisor who does nothing is not personally liable for someone else's harassment, but the failure exposes the company and commonly costs the supervisor their job.
So if an employee tells you "in confidence," you cannot promise to keep it there. Say so kindly before they go on, then report it.
Before you report for someone else. If you can, talk to the person first. An investigation will involve them whether they asked for it or not, and once a supervisor or HR knows, the company has a legal duty to act. You do not need their permission to report what you saw yourself. It is a kindness to warn them.
What to do if you saw it
- Write it down the same day. The date, time and place, the exact words, what you saw, and who else was there. Date the note and keep it at home.
- Check on the person. Tell them what you saw and that you are willing to say so. Knowing there is a witness often decides whether a person reports at all.
- Step in when it is safe. You do not have to confront anyone. Interrupting, changing the subject, staying in the room or asking the person to come with you all work. State law sets out optional bystander intervention training for employers that teaches exactly this.
- Report it in writing. Use the company's complaint channel. The policy must offer a route that does not go through your own supervisor. Keep a copy.
- Keep what you lawfully have. Messages sent to you and group chats you are part of. Do not take files you have no right to, and do not secretly record a private conversation. The page on evidence, texts and recordings explains the recording law.
- Be accurate. Report what you saw and heard. Keep what you assume, and what others told you, clearly separate.
- Watch for retaliation and write that down too. A change in your schedule, reviews or treatment after you spoke up is evidence. Note the date of each change.
- Know the deadline. You have three years to file a complaint with the Civil Rights Department about harassment or retaliation.
If you are interviewed in the company's investigation
- Tell the truth, and only what you know. "I saw," "I heard him say" and "she told me afterward" are three different things. Keep them apart.
- Do not expect full confidentiality. The employer must keep the matter confidential to the extent possible, but the rules say it cannot promise complete confidentiality. The accused person will usually learn the substance of what witnesses said.
- Read any written statement before you sign it. Correct what is wrong. Ask for a copy.
- A request to keep the interview confidential has limits. It cannot stop you from talking to the Civil Rights Department, the Equal Employment Opportunity Commission or a lawyer, or from testifying.
- You are not exposed to a defamation claim for an honest statement. Communications between an employer and interested persons about a sexual harassment complaint are privileged when made without malice.
- The investigator works for the company. HR and the company's lawyer do not represent you. Be truthful and cooperative, and get your own advice if you start to feel like a target.
- Refusing to take part carries risk. An employer can generally require employees to cooperate with a workplace investigation, so refusing an interview can itself lead to discipline.
What a proper investigation looks like is covered in what happens after a report to HR.
If you are subpoenaed or asked to testify
| Question | The rule |
|---|---|
| Do I have to go? | Yes. A subpoena is a court order. A person who fails to appear can be held in contempt and owes the party who subpoenaed them $500 plus any damages caused |
| Can my employer punish me for going? | No. An employer of any size may not fire or retaliate against an employee for taking time off to comply with a subpoena or court order as a witness |
| Am I paid? | You are entitled to a witness fee of $35 a day plus 20 cents a mile each way. Your employer does not have to pay wages for the time, but you may use vacation, personal leave or paid sick leave |
| What if someone pressures me not to testify? | Knowingly and maliciously trying to prevent or dissuade a witness from attending or testifying in a proceeding is a crime |
| What if I signed a confidentiality agreement? | A contract term that waives your right to testify about alleged sexual harassment, when you are subpoenaed or asked in writing by an agency, is void |
| Can I be sued for what I say? | Testimony in a judicial or official proceeding is privileged. Lying under oath is perjury, so the protection is for truthful testimony |
Before the subpoena. A lawyer or investigator for either side may call you first. You are free to talk to them and free to decline an informal conversation. If you do talk, ask who they represent, and do not sign a written statement you have not read carefully.
If the company offers you its lawyer. Employers often offer to have the company's lawyer sit with a current employee at a deposition at no cost. That lawyer's client is the company. If your account differs from the company's position, get independent advice first.
At the deposition. A witness's deposition is usually far shorter than a party's. You answer under oath what you saw and heard. The page on what to expect at a deposition explains the room, the rules and how to answer.
If you were the one harassed: how witnesses help
You do not need a witness to have a case. Under California law the testimony of one believable witness is enough to prove a fact, and that witness can be you. Witnesses still make a case stronger, and more kinds of people count than most expect.
- People who saw or heard it.
- People you told at the time. A friend, partner, coworker or doctor who heard about it when it happened shows the account is not new.
- People who saw the change in you. They can describe the effect on your sleep, mood and work.
- Other people the same person harassed. California courts have allowed this kind of testimony to show the harasser's intent and to answer the claim that it was a misunderstanding.
- Former employees. They often speak more freely than people who still depend on the employer for a paycheck.
Give your lawyer the names and let the lawyer make contact. Do not pressure a coworker, script what they should say or offer anything in return. A witness who was leaned on is worth less than no witness. How to build the record yourself is in how to document workplace harassment.
Questions people ask
Yes. Anyone who sees or learns of harassment can report it to the employer or to the Civil Rights Department. You do not need the target's permission, and reporting is protected from retaliation.
Not lawfully. Firing or punishing a person because they reported harassment, supported a complaint or testified is retaliation under the Fair Employment and Housing Act. If it happens, write down the dates and get advice quickly.
Many employers have a hotline that accepts anonymous reports. An anonymous report is harder to investigate, and it is harder to prove later that the employer punished you for it. A written report with your name gives the clearest protection.
Only to the extent possible. An employer has to share enough to investigate fairly, and California's rules say it cannot promise complete confidentiality. Assume the accused person will learn roughly what you said.
You are still protected if you reported honestly and your belief was reasonable. The law does not require a witness to be a lawyer. What is not protected is a report you know to be false.
If you are a coworker the decision is yours, and it is reasonable to respect their wishes while keeping your own notes. If you are a supervisor you are expected to report it, and the company is treated as knowing what you know.
In practice, yes. State regulations require the company's policy to instruct supervisors to report complaints to a designated representative, and the company becomes responsible once you know. Tell the employee that you cannot keep it confidential.
Sometimes. If you personally witnessed severe or pervasive harassment of others in your immediate work environment, you may have your own hostile work environment claim. If you were punished for speaking up, you may have a retaliation claim.
You can report what you heard, and say that it is secondhand. For a claim of your own, courts generally require that you witnessed the conduct or that it reached you in your own work area.
An honest statement made without malice in connection with a sexual harassment complaint is privileged under the Civil Code. Testimony in a court or agency proceeding is privileged as well. The protection does not cover statements you know are false.
Staying quiet is not illegal for a coworker. Taking part can be, because every employee is personally liable for harassment they commit themselves. If you joined in, talk to a lawyer before you give a statement.
It can ask for discretion while the investigation is under way. It cannot stop you from talking to a government agency or a lawyer, from testifying, or from disclosing information about unlawful acts in the workplace.
Yes. Former employees are often the most willing witnesses because the employer no longer controls their paycheck. You can be subpoenaed like anyone else, and a former employer that retaliates, for example with a false reference, can still be liable.
Three years from the retaliation to file with the Civil Rights Department. Some related claims have shorter deadlines, so do not plan around the longest one.
Talk to someone before you decide
If you saw something and are unsure what to do, were asked for a statement, received a subpoena, or were treated differently after you spoke up, tell us what happened. We will explain where you stand and what protects you. It is free and confidential.
(800) 371-3088 or send what you have.
Related reading: workplace retaliation, what to do if a coworker is harassing you, every filing deadline, what happens when someone is accused, the full California sexual harassment guide, harassment on Zoom, Slack and email, harassment of nurses, and harassment in restaurants.
Sources
- California Government Code section 12940, subdivisions (h) and (j): retaliation, harassment, employer knowledge and personal liability.
- California Code of Regulations, title 2, section 11021: protected opposition and participation, including assisting others and being a potential witness.
- California Code of Regulations, title 2, section 11023: required contents of an employer's harassment policy.
- Yanowitz v. L'Oreal USA, Inc. (2005) 36 Cal.4th 1028: reasonable belief, refusing an unlawful order, and what counts as an adverse action.
- Crawford v. Metropolitan Government of Nashville and Davidson County (2009) 555 U.S. 271: answering questions in an internal investigation is protected.
- Fisher v. San Pedro Peninsula Hospital (1989) 214 Cal.App.3d 590, Lyle v. Warner Brothers Television Productions (2006) 38 Cal.4th 264, and Beyda v. City of Los Angeles (1998) 65 Cal.App.4th 511: harassment directed at others. Judicial Council of California, Civil Jury Instructions, CACI No. 2521B.
- Miller v. Department of Corrections (2005) 36 Cal.4th 446: widespread sexual favoritism.
- Thompson v. North American Stainless, LP (2011) 562 U.S. 170: retaliation against a complaining employee's fiance.
- Fiol v. Doellstedt (1996) 50 Cal.App.4th 1318: a supervisor who fails to act is not personally liable for another person's harassment.
- California Labor Code section 1102.5 and section 232.5: whistleblower protection and disclosure of working conditions.
- California Government Code section 12945.8 and section 68093: time off to comply with a subpoena, and witness fees.
- California Code of Civil Procedure section 1992 and California Penal Code section 136.1: failing to obey a subpoena, and dissuading a witness.
- California Civil Code section 47 and section 1670.11, and Government Code section 12964.5: privileged statements, and agreements that cannot silence a witness.
- California Government Code section 12950.2: bystander intervention training.
- California Evidence Code section 411: one witness is sufficient. Johnson v. United Cerebral Palsy/Spastic Children's Foundation (2009) 173 Cal.App.4th 740 and Pantoja v. Anton (2011) 198 Cal.App.4th 87: testimony from other employees.
- California Government Code section 12960: three years to file. Civil Rights Department, retaliation fact sheet.
Legal Disclaimer: This page is provided for general informational purposes only and does not constitute legal advice. Employment law is complex and fact-specific. The information on this page reflects California law as of 2026 and may change. If you believe your rights have been violated, please consult a licensed California employment attorney to evaluate your specific situation.