To get a court-ordered psychiatric evaluation, you file a petition or motion with the court that already has jurisdiction over your matter — a family court for custody, a probate court for guardianship, a criminal court for a competency question, or the civil court handling an involuntary commitment — and you back it with specific, documented evidence that ties the person’s mental condition to a legal question the judge has to decide. Judges do not order these evaluations on general worry or a hunch. The request has to fit a recognized legal track, and the paperwork has to give the court a reason grounded in the standard that governs that track.
Match the Request to the Type of Case
The first thing to get right is which legal track you’re on, because the standard, the forms, and the court all change with it.
Civil Commitment
If the person appears to be an immediate danger to themselves or others, or is so impaired they cannot meet their own basic needs, a court can order an evaluation to decide whether involuntary commitment is warranted. Each state has its own civil commitment statute, and most require evidence that the person poses a danger or meets the legal definition of “gravely disabled.” Check your state’s specific criteria before filing, since the wording controls what evidence the judge will want to see.
Family Law and Custody
In a custody dispute, a judge can order a psychiatric or psychological evaluation of one or both parents when there are credible concerns about a parent’s mental health and how it affects their ability to care for the child. The governing standard is the “best interests of the child,” which every state applies to custody decisions. The evaluator will look at parenting capacity, emotional stability, the parent-child relationship, and any substance use or mental health issues that could affect the child’s safety.
In federal civil litigation more broadly, a party’s mental condition can trigger a court-ordered examination under a separate rule. The court can order the examination when that condition is genuinely “in controversy” and the requesting party shows good cause. The order has to spell out the time, place, scope, and examiner, and every party must get notice beforehand.1Legal Information Institute (LII) at Cornell Law School. Rule 35 – Physical and Mental Examinations
Guardianship and Conservatorship
When family members or other concerned parties believe an adult can no longer make sound decisions about finances, medical care, or personal welfare, a court can order a mental capacity evaluation as part of a guardianship proceeding. The evaluation looks at whether the person understands the consequences of their decisions and can manage their own affairs. The results help the judge decide whether to appoint a guardian, and if so, how much authority that guardian should have.
Criminal Competency and the Insanity Defense
Criminal cases produce the most requests for psychiatric evaluations, and they come in two forms. The first is competency to stand trial. A defendant must be able to consult with counsel with a reasonable degree of rational understanding and have a rational and factual understanding of the proceedings, under the two-part test the Supreme Court set in Dusky v. United States.2Justia US Supreme Court. Dusky v. United States, 362 U.S. 402 (1960) When a judge, defense attorney, or prosecutor has a good-faith doubt about competency, the court will order an evaluation. In federal cases, the court can commit the defendant to a facility for up to 30 days for the assessment, with a possible 15-day extension if the evaluator needs more time.3Office of the Law Revision Counsel. 18 USC 4247 – General Provisions for Chapter
The insanity defense is separate, and the evaluation looks backward at the defendant’s mental state when the crime happened, not their current condition. Under federal law, a defendant must prove by clear and convincing evidence that a severe mental disease or defect made them unable to appreciate the nature, quality, or wrongfulness of their actions at the time of the offense.4Office of the Law Revision Counsel. 18 USC 17 – Insanity Defense State standards vary but usually follow a similar frame.
Who Is Allowed to File
Standing depends on the track. For civil commitment, the group is broad: family members, treating physicians, mental health professionals, law enforcement officers, and in some states social workers can initiate the process, depending on the state’s involuntary commitment statute. In custody cases, either parent or their attorney can file a motion. Guardianship petitions can be brought by family members, social services agencies, or other interested parties.
In criminal cases, a competency evaluation can be requested by the defense, the prosecution, or the judge on the judge’s own initiative. Defense counsel is the most common source, since a lawyer who cannot communicate with a client has both a practical reason and an ethical obligation to raise the issue.
Build the Evidence Before You File
The petition succeeds or fails on the evidence attached to it. Judges see vague complaints constantly. Specific, dated, documented incidents are what separate a granted petition from a denied one.
- Behavior log: a dated record of specific incidents with times, locations, and descriptions of what happened.
- Witness statements: written accounts from people who directly observed the concerning behavior.
- Medical or police records: any formal documentation of hospitalizations, emergency calls, or prior mental health treatment.
- Communications: emails, text messages, voicemails, or social media posts showing erratic or dangerous behavior.
The standard of proof you need to meet tracks the case type. In criminal competency questions, courts generally order evaluations on a “good faith doubt” about the defendant’s ability to participate. In civil cases, the requesting party must show “good cause” and demonstrate that the person’s mental condition is genuinely at issue.1Legal Information Institute (LII) at Cornell Law School. Rule 35 – Physical and Mental Examinations For civil commitment petitions, you generally need specific evidence of danger or an inability to meet basic needs.
File the Petition
Get the correct form from your local county court’s website or the clerk’s office. It will be called a “Petition” or “Motion” and will ask for identifying information about the person, specific recent examples of the behavior driving your request, and an explanation of why the person has not sought voluntary treatment. Some jurisdictions require the petition to be notarized before filing, so check local rules before you submit.
Filing with the clerk starts the formal process. You pay a filing fee at this stage, and the amount varies by jurisdiction. If you cannot afford it, most courts allow you to apply for a fee waiver based on income, but the waiver is not automatic; you fill out a separate financial application.
What Happens After You File
The person named in the petition must receive formal notice of the proceedings. This is called service of process, and it protects the person’s right to know about and respond to the legal action. Depending on the jurisdiction, papers can be delivered by a sheriff’s deputy, a private process server, or in some courts any adult who is not a party to the case. You cannot serve the papers yourself.
The court then schedules an initial hearing where you present your evidence and explain why an evaluation is warranted. The person who is the subject of the petition has the right to attend and argue against the request. In criminal proceedings, that right is especially strong: federal law guarantees representation by counsel (court-appointed if the person cannot afford one), the right to testify, to present evidence, and to cross-examine witnesses.3Office of the Law Revision Counsel. 18 USC 4247 – General Provisions for Chapter The judge reviews the evidence and decides whether there is sufficient cause to order the evaluation.
If the order is granted, the court appoints the evaluator. Federal law requires a licensed or certified psychiatrist or psychologist, though state courts may also use licensed clinical social workers, marriage and family therapists, or counselors depending on the jurisdiction and the type of evaluation. The person being evaluated typically has no say in who is selected, though in some federal proceedings the defendant can request an additional examiner of their choosing.3Office of the Law Revision Counsel. 18 USC 4247 – General Provisions for Chapter
Timelines and Costs
How long the process takes depends on the case type and local court backlogs. Emergency civil commitment evaluations can happen within days, since the person may already be in crisis. Custody evaluations commonly take about 12 weeks from court order to final report, with complex cases stretching to 16 or 20 weeks. Federal criminal competency evaluations run on the statutory 30-day initial commitment, with extensions available if the evaluator shows a need for more time.3Office of the Law Revision Counsel. 18 USC 4247 – General Provisions for Chapter
The evaluation itself is the biggest expense. Forensic mental health professionals typically charge $400 to $450 per hour for examination time and document review, and a full evaluation easily runs several thousand dollars once you count interviews, testing, report writing, and any court testimony. If the evaluator has to testify at a hearing, expect $3,000 to $5,000 for a half-day or full-day appearance. In criminal cases, a court-appointed evaluator’s fees are generally covered by the government. In civil and family law cases, the court decides how the cost is split between the parties, and in some situations one side bears the full expense.
If the Person Refuses to Cooperate
An order does not enforce itself, and people served with one sometimes refuse to participate. The consequences of refusal vary by track, and in civil and family cases they are usually worse for the refusing party than the evaluation would have been.
In federal civil cases, the court has a specific set of sanctions for a party who refuses to comply with an examination order. The judge can treat the contested facts as established in the opposing party’s favor, bar the refusing party from presenting certain claims or defenses, strike their pleadings, stay the proceedings, or enter a default judgment. Federal rules specifically exclude contempt of court as a sanction for refusing a mental examination, but the remaining options can be just as damaging.5Legal Information Institute (LII) at Cornell Law School. Rule 37 – Failure to Make Disclosures or to Cooperate in Discovery
In custody disputes, the fallout is more direct. A judge can draw an adverse inference — assuming the evaluation would have produced unfavorable results — and that assumption, combined with a demonstrated willingness to defy a court order, can shift custody toward the cooperating parent. Courts have also imposed fines and ordered the refusing party to pay the other side’s attorney fees for having to bring a contempt motion.
Criminal cases work differently because of constitutional protections against self-incrimination. Courts have more limited tools to compel participation, but a defendant who refuses a competency evaluation may find the court proceeding on whatever evidence is available, which usually cuts against them.