Requesting a DNA Test in Probate

Alan just received a notice from the court. His estranged half-brother, whom he hadn’t seen since childhood, is claiming a share of their recently deceased mother’s estate. Alan’s mother never mentioned this sibling in her will, and Alan has strong doubts about the validity of the claim. He’s facing the potential loss of a significant inheritance – roughly $300,000 – and is desperate to prove this man isn’t a legitimate heir.

The good news is, California law offers a powerful tool to resolve these disputes: DNA testing. But navigating the probate process to obtain a court order for a test, and then enforcing the results, can be complex. As an estate planning attorney and CPA with over 35 years of experience, I’ve handled numerous cases like Alan’s, and I understand the urgency and emotional stress involved.

When is a DNA Test Necessary in Probate?

A DNA test is typically requested when there’s a question of parentage – specifically, whether the claimant is actually the biological child of the deceased. This often arises in situations like:

• Intestate Estates: If the deceased died without a will (intestate), determining legal heirs becomes critical. A previously unknown child could emerge, demanding a share of the estate.
• Contested Wills: Even with a will, someone can challenge its validity by claiming they were omitted due to fraud or mistake. Establishing biological relationships is key.
• Step-Children & Adopted Children: These relationships require extra verification, especially if documentation is incomplete.

How Do You Obtain a Court Order for a DNA Test?

Simply demanding a test isn’t enough. You’ll need to file a formal petition with the Probate Court. The process generally involves these steps:

First, you’ll file a Probate Code § 850 Petition seeking an order compelling the claimant to submit to DNA testing. This petition must be supported by affidavits outlining your reasons for doubt and any available evidence – old family photos, letters, or even anecdotal evidence from relatives. The petition must clearly state what asset(s) are at issue.

Next, the claimant will have an opportunity to respond. They may contest the petition, arguing they don’t need to prove their parentage, or that the testing is an undue burden. A hearing will likely be scheduled where both sides can present evidence and arguments to the judge.

If the judge finds sufficient cause, they will issue an order requiring the claimant to submit to a DNA test performed by a certified laboratory. The order will specify who pays for the test – usually the estate, although the judge can allocate costs based on the circumstances.

What Happens After the DNA Test Results Come Back?

Once the lab provides the results, they’ll be presented to the court.

• Positive Match: If the DNA confirms the biological relationship, the claimant is likely entitled to their share of the estate.
• Negative Match: If the DNA definitively disproves the relationship, the claim will be dismissed.
• Inconclusive Results: Sometimes, the test results are inconclusive. In these cases, further testing may be required, or the court may need to consider other evidence.

As a CPA as well as an attorney, I always advise clients to consider the tax implications of these disputes. A step-up in basis is only available to legal heirs, and if a claimant is improperly included in the estate, it can create significant capital gains issues down the line. Accurate determination of heirship is paramount.

Can a Claimant Refuse to Take a DNA Test?

Yes, a claimant can refuse, but it carries significant risks. The court can issue sanctions, including dismissing their claim outright. Essentially, refusing to cooperate implies they have something to hide. However, it’s also important to remember that the court won’t force someone to undergo a painful or dangerous procedure.

What failures trigger contested proceedings and court intervention in California probate administration?

California probate is designed to provide court-supervised transfer of property, yet cases often break down when authority is unclear, required steps are missed, or disputes arise over assets, notice, and fiduciary conduct. When the process is misunderstood, families can face avoidable delay, escalating conflict, and increased exposure to creditor issues, hearings, or litigation before the estate can close.

To manage the estate’s value, separate property types by learning what counts as a probate asset, confirm exclusions through assets that bypass probate, and support valuation steps with inventory and appraisal to reduce disagreements about what is in the estate.

Ultimately, the difference between a routine distribution and a protracted legal battle often comes down to preparation. By anticipating the demands of the Probate Code and addressing potential friction points with beneficiaries and creditors upfront, fiduciaries can navigate the system with greater confidence and lower liability.

Verified Authority on California Probate Litigation

• Double Damages (Bad Faith Taking): California Probate Code § 859
  The “nuclear option” of probate litigation. If the court finds that a person has in bad faith wrongfully taken, concealed, or disposed of property belonging to the estate, the judge may assess liability for twice the value of the property, in addition to recovering the asset itself.
• Grounds for Removal of Executor: California Probate Code § 8502
  This statute lists the specific legal reasons a judge can fire a Personal Representative. Common grounds include wasting or mismanaging assets, neglecting the estate (moving too slow), or having an incurable conflict of interest with the beneficiaries.
• The “850 Petition” (Title Disputes): California Probate Code § 850
  Probate litigation often revolves around ownership. This powerful petition allows the probate court to solve title disputes without filing a separate civil lawsuit. It is used when an asset is titled to a third party but belongs to the estate (or vice versa).
• Presumption of Undue Influence (Caregivers): California Probate Code § 21380
  To prevent elder abuse, California law makes it incredibly difficult for paid caregivers to inherit from their patients. The law presumes the gift was the result of undue influence, forcing the caregiver to prove their innocence in court, often requiring a “Certificate of Independent Review.”
• Civil Discovery Rules Apply: California Probate Code § 1000
  Probate is not just administrative; it is a court of law. This code section confirms that the standard rules of civil practice apply. This means litigators can use interrogatories, depositions, and demands for production of documents to build their case against a rogue executor.
• Extraordinary Fees (Litigation Costs): California Probate Code § 10811
  Litigation is not covered by the standard statutory fee. Attorneys can petition the court for “extraordinary fees” for litigation services (e.g., defending a will contest or recovering stolen property). These fees are billed hourly and must be approved by the judge.