Evidence in a California Divorce: What the Court Considers and How It Is Gathered

Most people facing a contested divorce in San Diego County reach this question at a specific moment: the other side has denied something they know to be true, a support number looks wrong, or a custody claim has appeared that they need to answer. They have texts, bank statements and a long memory of the marriage, and they are trying to work out which of it a judge will actually look at, how to get the records they do not have, and where the legal lines are. If you are in immediate danger, call 911.

When settlement is not enough and a case is headed for a hearing, assertive representation is mostly a matter of evidence: knowing what the court needs, obtaining it through proper procedure, and presenting it so it is admitted. This article walks through each piece in order.

The California Evidence Code governs what a family court may consider, the same as in other civil cases. Family law matters in this county are heard by the Superior Court of California, County of San Diego, and the judge there applies those rules at hearings and at trial.

Evidence usually falls into three kinds. Documentary evidence is writing or records: tax returns, statements, emails, texts. Testimonial evidence is what a person says under oath, in court or in a sworn declaration. Physical evidence is a tangible object, such as a damaged phone or a photograph print.

The starting rule is short. Evidence Code section 350 says: "No evidence is admissible except relevant evidence." Relevant evidence tends to prove or disprove a fact that matters to an issue in the case, such as the character of an asset, a parent's income, a child's safety, or whether domestic violence occurred. Even relevant evidence may be excluded under Evidence Code section 352 if its value is substantially outweighed by the probability that it will take undue time or create substantial danger of undue prejudice, confusing the issues, or misleading the trier of fact.

Hearsay is a statement made outside the hearing that is offered to prove that what it says is true (Evidence Code section 1200). Except as provided by law, hearsay is inadmissible. The exceptions matter in family cases, including business records such as bank statements, a party's own statements offered against that party, and a witness's prior inconsistent statements.

Authentication means showing a document is what the person offering it claims it is (Evidence Code section 1400). Under Evidence Code section 1401, a writing must be authenticated before the court may receive it. A screenshot, a spreadsheet or an email printout all need that foundation.

Discovery is the formal process each side uses to obtain evidence from the other side and from third parties before trial. In a contested case, it is where most of the factual record gets built.

• Interrogatories are written questions the other party must answer under oath.
• Requests for production of documents require the other party to hand over records in their control, such as financial statements, communications and business records.
• Requests for admission ask the other party to admit or deny specific facts, which narrows what has to be proved at trial.
• Depositions are oral testimony under oath, taken before trial and recorded by a court reporter.
• Subpoenas reach people who are not parties. Under Code of Civil Procedure section 1985, a subpoena is an order requiring a person to appear and testify, and it may also require the person to bring books, documents, electronically stored information or other things under their control. A subpoena for records issued before trial must be served with an affidavit showing good cause, the exact items wanted, and their materiality to the case. Banks, employers and accountants are common recipients.

Alongside discovery sit the mandatory disclosures, which this article returns to in the financial section. Under Family Code section 2104(f), each spouse serves a preliminary declaration of disclosure either with the petition or response, or within 60 days of filing it, and those periods may be extended by written agreement of the parties or by court order. A current income and expense declaration is central to any support request. Under Family Code section 2105(a), each party generally serves a final declaration of disclosure and a current income and expense declaration before or at the time the parties enter an agreement resolving property or support issues other than temporary support, or, if the case goes to trial, no later than 45 days before the first assigned trial date. The court may order otherwise for good cause, and the parties may mutually waive the final declaration, but a waiver must be executed under penalty of perjury in open court or by separate stipulation.

When a party fails to respond or ignores a discovery order, the other side can ask the court to compel compliance, and California courts have power to impose sanctions for discovery abuse. Those requests are made to the family court in the same case. The site's guide on litigation abuse in family court covers the other side of that coin: discovery used to overwhelm rather than to learn.

Under Family Code section 760, except as otherwise provided by statute, property acquired by a married person during the marriage while domiciled in California is community property. Separate property generally includes what a spouse owned before marriage or received by gift or inheritance. The label on an account or a deed is a starting point, not the answer; characterization is decided on the evidence.

Tracing is the evidence that follows money from a separate source into a current asset. It is built from title documents, account statements over time, inheritance records, gift letters and closing files. Without it, a separate-property claim often has little to stand on.

Family Code section 2640 gives a spouse reimbursement for separate-property contributions to the acquisition of community property, to the extent the spouse traces them to a separate source, unless that spouse made a written waiver or signed a writing with that effect. "Contributions" include down payments, payments for improvements, and payments that reduce loan principal, but not interest, maintenance, insurance or taxes. Reimbursement is without interest or adjustment for change in value and cannot exceed the property's net value at division.

The opposite situation is Moore/Marsden apportionment: community money paying down the loan on one spouse's separate-property home. The community may receive a share of the home's value, and proving it takes evidence of the community payments and the property's value at the relevant dates.

On valuation, Family Code section 2552 directs the court to value the community estate's assets and debts as near as practicable to the time of trial. Upon 30 days' notice, the court may for good cause value all or part of them at a date after separation and before trial to divide the estate equally in an equitable manner. Valuation evidence has to be current enough to meet that standard. A business's value can include goodwill, and that value is decided on the evidence, often with experts.

The documents that typically carry this work include tax returns, bank and brokerage statements, retirement account records, deeds, loan documents and business financial statements. The preliminary and final declarations of disclosure are the foundation underneath all of it. For a fuller picture of how money disputes are resolved, see the site's overview of financial disputes in divorce.

Family Code section 3020 makes the child's health, safety and welfare the court's primary concern in any custody or visitation order, and that priority decides which evidence matters. A parent who is answering serious accusations about their child often feels the whole case turns on credibility; in practice, it turns on records and facts that line up with the statutory factors.

Under Family Code section 3011, the court considers, among other relevant factors, including: the child's health, safety and welfare; any history of abuse by a parent or other person seeking custody against the child, the other parent, or certain others in the household or relationship; the nature and amount of contact with both parents; and the habitual or continual illegal use of controlled substances, the habitual or continual abuse of alcohol, or the habitual or continual abuse of prescribed controlled substances by either parent. Under Family Code section 3040(a)(1), when granting custody to either parent, the court also considers, among other factors, which parent is more likely to allow the child frequent and continuing contact with the noncustodial parent, consistent with sections 3011 and 3020.

Common custody evidence includes school and medical records, texts and emails between the parents, photographs, witness declarations and police reports.

When custody or visitation is contested, Family Code section 3170(a) requires the court to set the contested issues for mediation. In San Diego County, that is child custody recommending counseling with the court's Family Court Services. Under Family Code section 3183(a), the mediator, called a child custody recommending counselor, may, consistent with local court rules, submit a recommendation to the court if it has first been provided in writing to the parties and their attorneys, including any counsel for the child, before the hearing. Family Court Services calls this person the Family Court Counselor, and states that if no agreement is reached, the counselor makes a recommendation and the court hearing proceeds. The judge decides. Domestic violence cases are handled by Family Court Services under a separate written protocol approved by the Judicial Council (section 3170(b)).

Family Code section 3044(a) creates a rebuttable presumption that awarding sole or joint physical or legal custody to a parent is detrimental to the child, upon a finding that the parent perpetrated domestic violence within the previous five years against the other party, the child, the child's siblings, or certain others. It may only be rebutted by a preponderance of the evidence, and neither the preference for frequent and continuing contact with both parents nor the preference for contact with the noncustodial parent may be used to rebut it, in whole or in part (section 3044(b)(1)).

Emergency requests need their own showing. Under Family Code section 3064(a), the court generally will not grant or modify custody on an ex parte basis unless there is a showing of immediate harm to the child or immediate risk the child will be removed from California. Section 3064(b) says immediate harm includes, among other things, a parent's domestic violence of recent origin or part of a continuing pattern, and sexual abuse of the child of recent origin or part of a continuing pattern, and the court must consider a parent's illegal access to firearms and ammunition. Where an allegation is disputed, the site's explainer on false allegations in custody cases addresses how courts respond.

Lawful sources are broad: formal discovery, subpoenas, public records, documents already in a spouse's own possession, and what the other side discloses voluntarily or under the disclosure statutes.

Penal Code section 632 generally prohibits intentionally recording a confidential communication without the consent of all parties to it, subject to limited statutory exceptions, and violations carry fines and possible jail. That section is about confidential communications; it is not a rule about every recording. Separately, getting into another person's email, phone, cloud storage or accounts without authorization raises its own legal problems. A recording made in violation of that section may be excluded from evidence.

Within those limits:

• Social media: posts, photos and messages a party made public or shared with the person offering them may be relevant, and must be authenticated.
• Texts and emails: a spouse may use communications they sent or received, when relevant and authenticated.
• Photographs and video: admissible when authenticated; location and date metadata can be relevant.
• Private investigators: a licensed investigator may lawfully observe activity in public places.
• Expert witnesses: forensic accountants, vocational evaluators, business appraisers and child custody evaluators produce reports and testimony that are themselves evidence.

A judge, not a jury, decides family law cases in the Superior Court of California, County of San Diego, weighing the evidence and making findings of fact.

Much of the written testimony comes in as declarations, statements signed under penalty of perjury. Live testimony matters too: under Family Code section 217, at a hearing on a request for order, the court generally must receive live, competent, relevant testimony within the scope of the hearing unless the parties stipulate otherwise or the court finds good cause and states its reasons. A party who wants to call witnesses other than the parties must file and serve a witness list with a brief description of the expected testimony before the hearing. The court may ask questions of the parties.

Exhibits are marked, authenticated and admitted before the judge considers them. Witnesses face direct examination and cross-examination. The court may take judicial notice of certain facts, such as official government records, without formal proof. The party making a claim generally carries the burden of proving it, usually by a preponderance of the evidence, meaning more likely true than not.

Objections are how the rules get enforced in real time. Opposing counsel may object that evidence is irrelevant, is hearsay, lacks foundation, or is not authenticated, and the judge rules before the evidence comes in. The site's guide on what not to do in family court covers how testimony that contradicts a sworn declaration plays out.

Deleting texts, emails or financial records after a case begins can be treated as spoliation, the destruction of evidence, and a court may draw an inference that the missing material would have hurt the person who destroyed it. For a spouse already worried about how they look to the court, this is one of the easiest problems to avoid.

Incomplete financial disclosure is often the most damaging. Under Family Code section 2105(a), perjury on the final declaration may be grounds for setting aside the judgment, in addition to other remedies. Family Code section 2122 sets the grounds and time limits for a set-aside, including actual fraud and perjury in the declarations of disclosure, a waiver of the final declaration, or the income and expense statement, each brought within one year after the complaining party discovered or should have discovered it, and duress, brought within two years after entry of judgment.

Other common errors include:

• Relying on a recording made in violation of Penal Code section 632, which may be excluded, or on account access obtained without authorization, which raises its own legal problems.
• Offering screenshots or printouts with no foundation to show who sent them, when, or that they are unaltered.
• Calling an asset separate property without tracing evidence to support it.
• Waiting too long to obtain records that become harder to get, such as business records, loan files and older retirement statements.

Custody cases have their own set of pitfalls, collected in the site's piece on custody battle mistakes.

Evidence questions rarely stay abstract once a case is contested: whether a set of texts can be authenticated, which records a subpoena can reach, whether a recording is usable, or how far back tracing has to go. A consultation with the firm is a place to go over these evidence rules in more depth. San Diego Family Law Advocates practices California family law only.

To talk with the firm about evidence in a divorce, call San Diego Family Law Advocates at 858-758-2288 for a confidential consultation.