AI in Private Family Law: Already Showing Up in the Evidence

.

AI is already appearing in private family proceedings — from invented authorities to AI-shaped witness material.

Parents using AI in private family law is not surprising. The process is technical, document-heavy, and often navigated under pressure, late at night, without legal representation. What is striking is how quickly AI is influencing the material that reaches the court — not only drafting, but tone, and, in some cases, the substance of a party’s case.

Private family law is especially sensitive to this because so much turns on written evidence — statements, messages, chronologies and exhibits and on how that material reads over time.

AI-polished witness statements and position statements

It is often not the content itself that stands out, but the sudden shift in style, for example, statements that:

• Contain long, highly structured paragraphs that do not match the parent’s natural writing

• Use stock AI phrasing (for example: “I seek to provide a balanced and objective account of the parties’ co-parenting dynamic…”)

• Present allegations in a tidied-up format that looks authoritative even when the underlying facts are messy

• Rely on abstract, clinical terminology (“inconsistent co-parenting practices”, “emotional dysregulation”, “ongoing safeguarding concerns”) that does not appear anywhere else in the parent’s communication.

Often the red flag is a sudden stylistic jump ... a polished voice that doesn’t match the person who signed the statement.

AI and false procedural certainty

AI frequently presents private family law as more predictable than it is. For vulnerable parents without a lawyer, that can be dangerous: AI can produce confident‑sounding outputs that feel like legal advice and emotional validation at the same time.

I have seen parents arrive convinced that a fact‑finding hearing is automatic, that Cafcass must interview the child, or that shared care is the default. Those assumptions can skew preparation, priorities and expectations.

And the issue is not only tone or expectations. Courts are also seeing more concrete AI errors in legal material itself.

Invented authorities in court documents

One visible example is AI-generated legal authorities that look plausible but are wrong.

In D (A Child) (Recusal) [2025] EWCA Civ 1570, the Court of Appeal recorded that a litigant in person had used AI when preparing a skeleton argument and cited authorities, some of which could not be found. The court described the use of AI as understandable in the circumstances, while also underlining the need to verify authorities and noting the risk of AI “hallucinations.”

Where this is going next

The interesting question is no longer whether AI appears in private family law documents. It already does.

The next question is how courts will approach material that is partly written, framed or researched through AI — especially where authorship, reliability and weight are in issue.

A short practical note for parents using AI in court documents

AI can be useful for structure and clarity. In a court context, a few habits can reduce avoidable problems.

• Keep your own voice in statements and position documents.

• Check any legal authority or legal point before relying on it.

• Avoid pasting confidential court papers or sensitive information about children into public AI tools.

• Treat AI as a drafting aid, not as a substitute for legal advice