Blood-Grouping Test Law and Legal Definition

Blood-Grouping test is a test used in paternity and illegitimacy cases. This test is used to decide whether a particular man can be the father of a child whose paternity is in question. However, the test does not establish paternity. It only eliminates men who could not be the father of the child.

Blood grouping tests are scientifically reliable when used to exclude a male as a possible father, and were recognized as such by the adoption of the Uniform Act on Blood Tests to determine paternity. [Jackson v. Jackson (1967) 67 Cal 2d 245, 60 Cal Rptr 649, 430 P2d 289, 1967 Cal LEXIS 217].