PRIVATE DNA TESTING GUIDE · GREATER CHICAGOLAND AREA
Home DNA Test Kit vs. Professional DNA Collection — What's the Difference and Which One Do You Actually Need?
Retail DNA kits at CVS and Walgreens look like a convenient solution. Mail-in services like HomeDNA and Identigene seem easy. But if there is any chance your results will ever be used in a legal proceeding — child support, custody, immigration, or any court matter — those options will not work. This guide explains the difference clearly so you can make the right choice the first time.
Three Ways to Get a DNA Test — What Each One Actually Gives You
Not all DNA tests are equal. The method of collection and chain of custody documentation determines whether your results are legally valid — or just personal information.
Retail DNA Kit
CVS, Walgreens, Walmart, Amazon — brands like Identigene
You purchase a kit, collect cheek swabs at home yourself, and mail them to a lab. Results are returned to you directly. There is no certified collector, no chain of custody documentation, and no legal validity. These kits are designed for personal curiosity only.
Not court admissibleMail-In DNA Service
HomeDNA, DDC at-home, 23andMe, AncestryDNA
You order online, receive a kit, collect samples at home, and mail them back. Similar limitations to retail kits — no certified collection, no chain of custody. Results are for personal knowledge only and cannot be used in legal proceedings.
Not court admissibleProfessional Mobile Collection
Certified collector comes to your location — AABB accredited lab
A certified collector comes to your home, office, or any private location. Samples are collected under strict chain of custody protocols and sent to an AABB-accredited laboratory. Results are legally valid for court, child support, custody, immigration, and any official purpose.
Court admissible ✓Side-by-Side Comparison
| Criteria | Retail Kit | Mail-In Service | Professional Collection (OnSite) |
|---|---|---|---|
| Court admissible | ❌ No | ❌ No | ✅ Yes |
| Chain of custody | ❌ No | ❌ No | ✅ Yes |
| AABB accredited lab | ❌ No | Sometimes | ✅ Yes |
| Certified collector | ❌ No | ❌ No | ✅ Yes |
| We come to your location | ❌ No | ❌ No | ✅ Yes |
| Prenatal testing available | ❌ No | ❌ No | ✅ Yes |
| Immigration/USCIS accepted | ❌ No | ❌ No | ✅ Yes |
| 100% confidential | ✅ Yes | ✅ Yes | ✅ Yes |
| Results timeline | 3–5 days | 5–7 days | 5–7 days |
| Best for | Curiosity only | Curiosity only | Legal, court, immigration, peace of mind with valid results |
Chain of custody means every step of the sample collection — who collected it, when, where, and how it was sealed and transported — is documented and legally verifiable. Without it, no court or government agency will accept the results.
The One Question That Determines Which Option You Need
Will these results ever be used in a legal proceeding, child support case, custody matter, immigration application, or any official purpose — now or in the future?
A retail kit or mail-in service may be sufficient. You will get an accurate result for personal knowledge. Just understand that if your situation ever changes and you need legal validation, you will need to retest with professional collection.
Professional collection with chain of custody is the only option that will hold up. Do not spend money on a kit and then have to retest. Get it done right the first time.
Which Type of DNA Test Do You Actually Need?
Once you know you need professional collection, the next question is which specific test fits your situation.
“I want to know for myself — no legal case involved”
Informational Paternity Test — $199
“I need results for court, child support, or custody”
Legal Paternity Test — $369
Court admissible in Illinois“I am pregnant and need to know before the baby is born”
Prenatal Paternity Test — $1,329
Safe during pregnancy. Blood draw only.“I need to prove a relationship for immigration or a USCIS case”
Immigration DNA Test — $499
USCIS accepted“I want to be discreet — no one else needs to know”
Private Paternity Test — $199
Most discreet option“I need to confirm a sibling or grandparent relationship”
Sibling or Grandparent DNA Test — from $299
What Professional Mobile DNA Collection Looks Like With OnSite
- 1Call (219) 315-0345 to discuss your situation and confirm which test fits your needs. We will give you a straight answer.
- 2Schedule a time that works for you. A certified collector comes to your home, office, or any private location in the Greater Chicagoland area — or you can visit our Rolling Meadows location.
- 3Collection takes 10–15 minutes. Cheek swabs for most tests. Blood draw only for prenatal testing. All samples are sealed under chain of custody documentation.
- 4Samples go to our AABB-accredited, SAMHSA-certified laboratory. Results are delivered confidentially to you in 5–7 business days.
- AABB Accredited Lab
- 100% Confidential
- Chain of Custody Every Collection
- No Doctor Referral Required
Frequently Asked Questions
Why can't I use a CVS or Walgreens DNA kit for a court case?
Retail and mail-in kits have no chain of custody documentation. Courts require proof that the sample was collected by a certified professional, properly sealed, and sent directly to an accredited lab — with every step documented. A self-collected kit cannot prove who actually provided the sample or that it was not tampered with. No court, child support agency, or immigration authority will accept results without chain of custody.
What does AABB accreditation mean?
AABB (formerly the American Association of Blood Banks) is the gold standard accreditation for relationship DNA testing laboratories. An AABB-accredited lab meets strict quality and accuracy standards. For legal DNA testing in Illinois and nationwide, AABB accreditation is the benchmark courts and agencies look for.
How long does DNA testing take?
Results from our AABB-accredited lab are typically returned in 5–7 business days from the date of collection. Prenatal paternity testing follows the same timeline. We will confirm the expected turnaround when you schedule.
Is the collection really confidential?
Yes. Results are shared only with the person who ordered the test. We do not share results with employers, courts, or any third party without your explicit written consent — except where legally required.
Do you come to my home or do I have to go somewhere?
We come to you. A certified collector travels to your home, office, hotel, or any private location within approximately 30 miles of Rolling Meadows, IL. If you prefer to come to us, our Rolling Meadows location is available by appointment.
What if I need results for an Illinois child support or custody case specifically?
Our legal paternity test is court admissible in Illinois and nationwide. Chain of custody documentation is included with every legal collection. If you have specific questions about what your attorney or the court requires, call us before scheduling — we will make sure the test is set up correctly for your case.
Not Sure Which Test You Need? Call Us First.
We will ask a few simple questions and tell you exactly which test fits your situation — before you pay anything. No pressure, no upsell.