(a) If a genetic testing specimen is not available from an alleged genetic parent of a child, for good cause the court may order the following persons to submit specimens for genetic testing:
(1) the parents of the alleged genetic parent;
(2) a sibling of the alleged genetic parent;
(3) another child of the alleged genetic parent and the person who gave birth to that other child; and
(4) another relative of the alleged genetic parent necessary to complete genetic testing.
(b) Prior to issuing an order under subsection (a) of this section, the court shall provide notice and opportunity to be heard to the person from whom a genetic sample is requested. If the court does order a person to be tested pursuant to subsection (a) of this section, it shall make a written finding that the need for genetic testing outweighs the legitimate interests, including the privacy and bodily integrity interests, of the person sought to be tested.
(c) A genetic specimen taken pursuant to this section shall be destroyed after final determination of the parentage case.