Q: How accurate is DNA-Based paternity testing?
A: DNA Testing is the most accurate way of determining the paternity of a child.
Since DNA paternity testing is based on statistics, it is not 100% accurate. However, technology allows for results that are >99.99999% accurate.
Laboratories can be 100% sure when a potential father is NOT the dad. They can be >99.9999% sure when a potential father IS the dad. Quality laboratories will test the samples twice to make sure the results are accurate. DNA Paternity Testing is as close as you can get to absolute certainty.