When paternity is disputed and nobody will sign anything, the question goes to a court or a state child support agency, and the first thing either will do is order genetic testing. The process is more routine than it sounds. Here is what actually happens.
How the order comes about
Someone files. It can be the mother, the alleged father, the child's legal representative, or the state - typically when public assistance is involved. The filing asks the court to determine parentage, and either party can request genetic testing, or the court can order it on its own motion.
State child support agencies can order testing administratively, without a judge. This is faster and cheaper, and it is how a large share of paternity cases in the United States are actually resolved. The federal framework requiring states to do this is set out in 42 U.S.C. § 666, and the federal Office of Child Support Services explains how state programs operate.
What the order will say
A typical order specifies:
- Who must be tested - usually the alleged father and the child, sometimes the mother
- The laboratory or collection facility to use, or the requirement that it be accredited
- A deadline for the collection
- Who pays initially, and who may be ordered to reimburse
- Where the report is sent - typically to the court or agency, not to the parties directly
Follow it literally. Using a different lab because it was cheaper, or a home kit because it was faster, wastes the appointment and irritates the judge.
The appointment
Fifteen to thirty minutes, usually at a collection site, lab patient service centre, or occasionally a courthouse-affiliated facility. What happens:
- Each adult presents current government photo ID, which is copied.
- The child is identified by birth certificate, and by the accompanying adult.
- Everyone is photographed.
- A trained, neutral collector swabs the inside of each person's cheek.
- Samples are sealed and labelled in front of the participants, who sign the custody form.
- The sealed package is logged and shipped to the laboratory.
Parties do not have to attend at the same time. Where there is conflict, or a protective order, sites routinely schedule separate appointments. Ask for that when booking rather than at the door.
Timing
The analysis itself takes one to three business days once samples arrive. Add shipping, plus review and delivery to the court or agency. Two to three weeks from order to report is a realistic overall estimate, and expedited processing is available in urgent cases for an additional fee.
What the result triggers
Most states set a statutory threshold at which a genetic test creates a rebuttable presumption of paternity - 99% probability is the common figure. Above that, the court will generally enter an order of paternity unless there is a compelling reason not to.
An exclusion ends the case against that man. If another alleged father is identified, the process restarts against him.
Establishing paternity is not the end of the matter. It typically leads directly to a child support order, and it gives the father standing to seek custody and parenting time - which is a separate proceeding he has to actually file. See paternity, custody, and visitation.
Who pays
It varies by state and by circumstance. Common patterns:
- The party requesting the test pays initially
- The state advances the cost in agency cases, then seeks reimbursement
- The court orders the excluded or contesting party to reimburse after the result
- Fees are waived or reduced for indigent parties in many states
Agency-arranged testing is generally the cheapest route by a wide margin. See who pays for a court-ordered test.
If you do not show up
Refusing a court-ordered test is not a defence. Courts can and do enter a default finding of paternity against a party who fails to comply, and may add contempt sanctions. Agencies can proceed to establish paternity without the test.
If you genuinely cannot attend - work, distance, incarceration, being out of state - contact the court or agency in advance. Remote and out-of-state collections are arranged routinely; missing the appointment without telling anyone is what causes damage.
Can you challenge the result?
Rarely, and never on the basis of disliking it. Realistic grounds:
- Chain of custody defects - a collector who was a party, missing ID verification, an unsealed package.
- Laboratory accreditation - if the lab is not accredited for relationship testing. Courts look to the AABB accredited facility list.
- Untested close relative - if a brother, father, or son of the tested man could also be the father, that is a genuine issue and the remedy is to test him too.
Courts will sometimes order a retest where a real irregularity is shown. "I want a second opinion" is not one.
Practical preparation
- Bring current, unexpired government photo ID. An expired licence has ended more than one appointment.
- Bring the child's birth certificate or the documentation the site specifies.
- Tell the collector about any bone marrow transplant or recent transfusion - it changes which sample type is used.
- Disclose close relatives who could also be the father on the intake form.
- Keep a copy of every document you sign.
- Do not discuss the case with the collector; they are neutral and their notes can become part of the record.
To find a collection site in your area, browse by state. General information on how US courts operate is published by the United States Courts.
General information, not legal advice. Procedure, thresholds, and cost allocation vary by state.