Forensic DNA Testing in San Antonio

Court-Admissible DNA Profiling for Legal, Personal and Immigration Needs

Forensic DNA testing, also called DNA profiling, identifies individuals with a level of precision no other method matches. It’s used in legal proceedings, family law matters, and immigration cases where standard documentation isn’t enough. At Fastest Labs NW San Antonio, we’ve spent more than a decade providing DNA and testing services in San Antonio, and our Forensic Services operation is built on certified collection processes, secure chain of custody protocols, and AABB-accredited lab partnerships that make results reliable for court use where required.

Because forensic DNA results may be presented as evidence, accuracy and documentation aren’t optional. Our certified collectors follow strict sample isolation and contamination prevention procedures from the moment of collection through delivery to the lab. Every step is documented.

Ready to schedule forensic DNA testing in San Antonio? Call us at (210) 361-6497 or request an appointment online. Walk-ins are welcome during business hours.

Forensic Services We Offer

Our Forensic Services cover a full range of DNA testing types, each designed for a specific need:

Paternity Testing
Paternity Testing confirms biological fatherhood with high accuracy. Results are court-admissible for child support, custody, and related legal matters.

Immigration DNA Testing
Immigration DNA Testing meets government requirements for visa and residency applications when documentary proof of a biological relationship isn’t available.

Relationship Testing
Verifies siblingship, grandparent relationships, and other biological connections. Useful when paternity testing alone doesn’t answer the question.

Infidelity Testing
Infidelity Testing is available for clients seeking answers in sensitive personal situations. Results are handled with complete discretion.

DNA Profiling
DNA Profiling produces a genetic profile unique to an individual, used to establish or exclude identity in legal and personal contexts.

Chain of Custody: Why It Matters for Forensic DNA Testing

Chain of custody refers to the documented, unbroken sequence of custody, control, transfer, and analysis of a DNA sample. It’s a legal requirement for DNA evidence to be admissible in court. Any gap in that sequence can compromise the legal standing of results, which is why our collection procedures and DNA sample documentation follow strict, standardized protocols at every step.

At Fastest Labs NW San Antonio, certified collectors manage the entire collection process. Samples are properly labeled, sealed, and packaged with thorough documentation before being sent to our AABB-accredited partner laboratory.

Sample Collection & Turnaround

The standard collection method is buccal (cheek) swabs: simple, non-invasive, and completed in minutes. Our lab partners can also analyze other DNA sources, including hair, blood, and skin, which matters in forensic contexts where the available evidence may vary. Our certified collectors are trained to collect each sample type correctly while preserving chain of custody throughout.

Once collected, samples are sent to our partner laboratory for analysis. Results are typically available within 2 to 3 business days. For sensitive cases involving family disputes or legal proceedings, our staff is trained to make the collection process as comfortable and professional as possible.

AABB Accreditation & Confidentiality

All DNA testing at Fastest Labs NW San Antonio is performed by laboratories that hold AABB accreditation. AABB (formerly the American Association of Blood Banks) is the primary accreditation body for relationship DNA testing in the United States, recognized by courts, government agencies, and immigration authorities worldwide as the standard for legally admissible results. Advanced technology and precise analytical methods deliver results with high reliability.

Privacy is a central part of our process. Every client’s information and results are treated with complete confidentiality and shared only with authorized individuals. That commitment doesn’t change regardless of the reason for testing.

Why Choose Fastest Labs NW San Antonio for Forensic DNA Testing

Our certified collectors, AABB-accredited lab partners, and secure chain of custody protocols are already embedded in a facility San Antonio clients use for a full range of drug, alcohol, DNA, and background testing needs. You don’t need to visit multiple providers. We also serve clients in Boerne and the surrounding area.

• Over a decade of DNA and testing experience in San Antonio
• Certified collectors with strict chain of custody and contamination prevention protocols
• AABB-accredited partner laboratories
• Court-admissible, legally defensible results where required
• Results typically in 2 to 3 business days
• Complete confidentiality on every case

Current Promotion: $10 Off a Legal Paternity Test

New clients can save $10 on a legal paternity test. Print the offer and bring it in to redeem. This promotion is for new clients only and must be presented at the time of your visit.

Schedule Your Forensic DNA Testing in San Antonio

Bring a valid government-issued photo ID (driver’s license or passport) to your appointment. If a minor is being tested, a custodial parent or legal guardian must be present with proper ID. Walk-ins are welcome, and scheduling in advance is recommended so we can prepare everything before you arrive.

Not sure what to bring or which test you need? Call us before your appointment and we can walk you through it. Reach Fastest Labs NW San Antonio at (210) 361-6497 or request an appointment online.