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Big Spring


United States citizens can petition for their spouses, parents, children or siblings to immigrate to the United States and  permanent residents can do so for their spouses and unmarried children.

In most cases there are sufficient written records to validate relationships and satisfy the requirements of the U.S. Citizen and Immigration Services Department.

If more evidence of a biological relationship is needed, a voluntary DNA test may be advised. It is important to ask  the reason for testing, as that could dictate which U.S. agency is responsible for sample collection and receiving reports.


Avuncular Test

Avuncular testing determines the biological relationship between aunts, uncles, and their nieces and nephews.

Siblingship Test

Siblings who are unsure of their true parentage can

DNA Paternity Testing

Grandparentage Testing

DrugChek LLC

Provides DNA testing for a wide range of purposes. Paternity testing is one of our most sought-after services, with immigration testing and family relationship testing following close behind.

Our collectors are certified with the NADCM, and our labs are both AABB and ISO 17025 Accredited.


Certified with the NADCM

AABB Accredited Labs

Certified DNA Collections

ISO 10725 Accredited Labs

Accredited Business of the Better Business Bureau

DNA Specials