How old must a child be before a DNA paternity test can be performed?
DNA testing can be performed on newborn infants immediately after birth by using the same easy and painless buccal cheek swabs that are used in collecting samples from adults. DNA testing samples can be obtained from young children, or even infants after leaving the hospital, by also using buccal cheek swabs. For individuals under the age of 18 years, written consent must be given by the minor’s legal guardian.