What Michigan family, probate, and immigration courts actually require from a DNA test — AABB-accredited analysis, neutral third-party collection, and a documented chain of custody.
Michigan family, probate, and immigration courts routinely accept DNA evidence to establish parentage, sibling relationships, and other genetic questions. What they do not accept is any DNA test — the sample collection, laboratory, and paperwork all have to meet a specific standard before a judge will treat the result as reliable evidence.
There are three pillars a Michigan court expects to see: an AABB-accredited laboratory, a neutral third-party collector, and a documented chain of custody from collection to reporting. If any one of those is missing, opposing counsel can challenge the report and a judge can decline to admit it.
Pillar 1 — AABB-Accredited Laboratory
AABB (formerly the American Association of Blood Banks) is the accrediting body Michigan courts, USCIS, and the Michigan Department of Health and Human Services rely on for relationship DNA testing.
An AABB-accredited relationship testing laboratory has been audited against standards covering:
- Analyst training and competency
- Instrument calibration and validation
- Statistical methods for probability of relationship calculations
- Report content and signatory authority
- Retention of specimens, electronic data, and paperwork
NorthStar Lab Services is a collection and coordination provider. All laboratory analysis is performed by our AABB-accredited partner laboratory, and the signed legal report is issued on that laboratory's letterhead.
Pillar 2 — Neutral Third-Party Collection
A Michigan court needs to know that the samples on the report actually came from the people named on it. That is why participants cannot collect their own samples for a legal test — an independent, trained collector has to do it.
At a legal collection appointment the collector will:
- Verify each adult participant's government-issued photo identification
- Photograph each participant for the chain-of-custody file
- For minors, verify identity through a birth certificate and the accompanying legal guardian
- Collect buccal (cheek) swabs directly from each participant
- Seal and label each specimen in the participant's presence
- Complete and sign the chain-of-custody paperwork with each participant
The collector cannot be a party to the case, a relative, or the ordering attorney. Neutrality is part of what makes the report defensible.
Pillar 3 — Documented Chain of Custody
Chain of custody is the paper trail proving that the sealed sample the laboratory tested is the same sample the identified participant provided. It must be unbroken from collection through reporting.
A defensible chain-of-custody file typically includes:
- Signed identity verification and consent forms for each participant
- Photographs taken at the collection appointment
- Specimen labels signed by the participant and the collector
- A sealed, tamper-evident shipment record to the laboratory
- Laboratory receipt confirmation with intact seals
- The signed final report on the accredited laboratory's letterhead
If any link is missing, opposing counsel has grounds to argue that the tested sample may not belong to the named participant.
How These Requirements Apply in Michigan Practice
The three pillars are the same regardless of forum, but each Michigan venue has its own reason for insisting on them:
- Family court (paternity, custody, child support): a legal DNA report is often used to establish or disestablish paternity under the Michigan Paternity Act or Revocation of Paternity Act.
- Probate court (estate and heirship): a legal DNA report can establish a biological relationship to a decedent for intestate succession or a wrongful-death claim.
- Michigan Vital Records (birth certificate amendments): MDHHS accepts AABB-accredited chain-of-custody reports as supporting evidence for certain birth certificate changes.
- USCIS and consular immigration cases: USCIS and U.S. consulates only accept relationship DNA evidence from AABB-accredited laboratories with a documented chain of custody.
What NorthStar Handles — and What It Doesn't
NorthStar Lab Services coordinates the collection and chain-of-custody portion of Michigan legal DNA testing. That includes scheduling, identity verification, in-person collection in Saginaw or by mobile appointment across Michigan, sealed shipment to our AABB-accredited partner laboratory, and delivery of the signed legal report.
NorthStar does not appear in court, file paperwork with MDHHS Vital Records, or provide legal advice about how a report should be used in a specific case. Those decisions are for the participant's attorney or, where relevant, the Friend of the Court office.
This article is general information about Michigan law and process. It is not legal advice. For questions about a specific case, talk to a licensed Michigan family-law, probate, or immigration attorney.
NorthStar coordinates AABB-accredited, chain-of-custody DNA collection in Saginaw and by mobile appointment across Michigan, with signed legal reports from our partner laboratory.