In California family law: if one party records a phone conversation, what is the process for the other party?

A California participant who secretly records a confidential phone call may violate the California Invasion of Privacy Act, but the recording is not automatically criminal: confidentiality, consent, and statutory exceptions matter. The other party can preserve evidence and report the suspected violation to law enforcement or the local prosecutor; they may also have a civil claim. Whether the recording can be used in a family-law case is a separate question.

When the recording may violate the law

California generally prohibits intentionally recording a confidential communication without every party’s consent. A communication is confidential when the circumstances reasonably indicate that at least one party wants it confined to the participants, unless the parties could reasonably expect it might be overheard or recorded. Cal. Penal Code § 632(a), (c) (2025).[1]

“A person who, intentionally and without the consent of all parties to a confidential communication, uses an electronic amplifying or recording device to eavesdrop upon or record the confidential communication” is subject to criminal penalties. Cal. Penal Code § 632(a) (2025).[1]

The test is objective: whether a participant had a reasonable expectation that the conversation was not being overheard or recorded.[2] A call made in circumstances where recording could reasonably be expected may fall outside the statute. Whether a particular call was confidential depends on the facts.

There is also an important exception: a participant may record a confidential communication to obtain evidence reasonably believed to relate to another participant’s commission of specified offenses, including domestic violence, extortion, kidnapping, bribery, certain violent felonies, and certain harassing communications. The statute also addresses admissibility of such evidence in prosecutions for those offenses. Cal. Penal Code § 633.5 (2025).[3] This exception is limited; it does not make every recording made during a family dispute lawful.

What the other party can do

1. Preserve the evidence. Keep the original audio file, message or email transmitting it, call details, and any statements showing who recorded it and when. Avoid editing, deleting, or publicly distributing it.
2. Report the suspected violation. Contact local law enforcement or the district attorney’s office and provide the recording and relevant circumstances. The prosecutor decides whether to investigate or file charges; a private party does not file criminal charges personally.
3. Raise the issue in the family-law case. Tell your family-law attorney promptly. If the opposing party offers the recording, counsel can object and ask the court to determine whether it was obtained in violation of the statute and whether an exception applies.
4. Consider a civil claim. A person injured by a violation may sue for the greater of $5,000 per violation or three times actual damages, and may seek injunctive relief. The statute does not require actual damages as a prerequisite to suit. Cal. Penal Code § 637.2(a)–(c) (2025).[4]

Use of the recording in family court

Section 632 generally bars evidence obtained through an unlawful recording from use in judicial and other proceedings, subject to the statute’s stated exception for proof in a prosecution for violating section 632. Cal. Penal Code § 632(d) (2025).[1] Section 633.5 separately addresses evidence obtained under its specified crime-related exception in prosecutions for the enumerated offenses.[3] Thus, do not assume that a recording is admissible in a custody, divorce, or other family-law proceeding merely because it may be relevant. The court may need to decide whether the communication was confidential, whether consent or an exception applies, and whether the exclusion provision governs.

Practical next step: Preserve the recording and related communications, then have counsel assess the facts and the applicable exception before making a police report, civil claim, or evidentiary objection. This is general legal information, not legal representation.