That post you thought was private can end up on a screen in front of a family court judge. In California, a photo, a comment, a Venmo receipt, or a “deleted” TikTok can all become evidence in a divorce or custody case. Attorneys are pulling this content more than ever. Survey after survey shows a large majority of divorce lawyers now see social media surfaces in their cases.

Why Your Posts Matter in Court

Family courts take into account what your online presence reveals. Some examples of how posts can be used:

• A spouse claiming financial difficulties, but posting about vacations, a new car, or expensive meals.
• A parent describes themselves as reliable and available, but their social media activity suggests otherwise.
• Location tags and check-ins that conflict with their statements in court.
• New relationships introduced to children that raise safety concerns.

In custody disputes, this is the hardest hit. California decides custody based on the best interests of the child according to Family Code § 3011, and judges increasingly treat a parent’s online behavior as a window to their judgment and cooperation.

What Makes Social Media Admissible

A post doesn’t automatically become evidence. It must clear three hurdles under California law.

Relevance

The content must make a fact in the case more or less likely. A random photo won’t do unless it relates to a real issue, such as money, parenting, or honesty.

Authentication

This is where a lot of evidence dies. Under Evidence Code § 1400, you have to show that the post is what you say it is. A bare screenshot is easy to challenge, because profiles can be fake and images can be edited. Courts look for an account owner admitting that they posted it, a witness who saw the original, forensic metadata, or records subpoenaed directly from the platform.

Hearsay

An out-of-court statement offered for its truth can be excluded unless an exception applies. The party’s own statements often come in as admissions, but the rule still applies.

Even authenticated, relevant evidence can be excluded. Under Evidence Code § 352, a judge can exclude evidence when its unfair prejudice outweighs what it actually proves.

How Evidence Gets Collected the Legal Way

How you gather evidence is as important as what it shows. Public posts are fair game. If an account is public, there is no reasonable expectation of privacy, and those posts can be accessed without a court order.

Private content is different. Restricted accounts and private messages usually require formal discovery or a subpoena. And logging into your spouse’s account without permission to search for evidence can be a crime in California, and the material obtained illegally is usually thrown out anyway.

A word of caution for both parties:

• Do not delete posts when a divorce is imminent. This can be seen as destroying evidence.
• Remember that screenshots may live longer than the original content. Deleting something does not mean it is gone.
• Consider setting your accounts to private and avoid sharing personal information while your divorce case is ongoing.

Protect Yourself Before You Post

Social media is now one of the first places a family law attorney looks. It can strengthen your case or quietly wreck it, depending on which side of the screen your posts land.

If you’re facing a divorce or custody dispute, seek advice before your online activities become evidence. At Roberts & Zatlin, we help clients in the Inland Valley collect evidence that helps them and prevent evidence that doesn’t. Contact us to schedule a free consultation and discuss your case.