Testing: Paternity

: The most common method uses a buccal (cheek) swab to collect epithelial cells. While blood samples are also accurate, swabs are preferred for being painless and easier to transport.

Testing can be categorized by timing and the intended use of the results:

Paternity testing is a scientific process used to determine the biological relationship between a child and a potential father by comparing their genetic material . Modern DNA testing is considered the "gold standard" for its extreme accuracy, typically providing a for inclusions and 100% certainty for exclusions. How the Process Works

: Kits are available for personal use, but because there is no verified identity chain, results are not admissible in court . Common Uses and Benefits

: Requires a strict "chain of custody," where an unbiased third party verifies identities and supervises collection. These are admissible in court for matters like child support or custody.

Information for Parents on U.S. Citizenship and DNA Testing - Travel

: Analyzes fetal DNA found in the mother's blood; can be done as early as the 7th or 8th week .