The most common method for collecting samples is a buccal swab from the mother, child and alleged father, which involves rubbing a cotton swab on the inside of the cheek to collect cells for genetic markers.

Legal DNA Testing is also referred to as Chain-Of-Custody. Testing can serve as evidence of a relationship for matters such as child support, immigration matters, custody battles, social security purposes or birth certificate issues.

Non-invasive prenatal paternity testing (NIPP): A blood sample from the mother is taken after the eighth week of pregnancy to identify fetal DNA in the mother's blood. This DNA is then compared to a cheek swab sample from the potential father. NIPP is 99.9% accurate and safe.

Urine drug testing is a screening process designed to detect the presence of controlled substances.