Paternity refers to the legal establishment of who is the father of a child. While the identity of a child’s biological mother is usually by nature easy to establish, the father’s identity may in some cases be uncertain. Paternity issues often arise in cases involving child support, but they can also be important in relation to adoption, inheritance, legal decision making authority and parenting time, health care, and other issues.

Paternity Actions in Court

An action to establish paternity is a civil proceeding. Arizona requires that paternity be established by “clear and convincing evidence.” In reality, however, the standard of evidence is either met or is insufficient because of the recent developments in scientific testing.

DNA Testing and Establishing Paternity

The advent of Deoxyribonucleic Acid (DNA) profiling was a major breakthrough in paternity testing. In a DNA test, the scientist examines the genetic material that the child inherited from its biological parents. First, the child’s genetic characteristics are compared to those of the mother. The characteristics in the child that are not found in the mother are determined to have come from the father. If the man being tested does not have these genetic characteristics in his DNA, he can be scientifically excluded. If the man does have such characteristics, the probability of his paternity is calculated. DNA testing can establish a father’s paternity with over ninety-nine percent accuracy. DNA testing can be done even before the child is born.

DNA testing is generally done only when one party contests the paternity allegations. For instance, the putative (or “alleged”) father in a paternity action that is the basis for child support collection may require proof that he is the child’s father before he consents to payment of child support. In other cases, the mother may contest the putative father’s paternity, such as when a man attempts to gain custody of or parenting time with a child he believes to be his biological child.

In many other cases, there is no argument between the parents, and paternity can be established voluntarily. By statute, a married man is presumed to be the father of a baby born to his wife during or shortly after their marriage. Once paternity is established, the father may be ordered to pay child support for his child.

Paternity issues, like most family law issues, can have far-reaching implications, both financially and emotionally. When faced with these issues, it is important to seek the counsel of an objective, experienced family law attorney.