(1) A guardian, in the case of an adult who is an alleged incompetent person, or a parent or guardian, in the case of a minor who is an alleged incompetent person, may petition the court for the sterilization, under this chapter, of an alleged incompetent.
(2) The petition shall state and allege the following: The name, age, sex, residence, and post office address of the alleged incompetent person;
(3) The name, residence, and post office address of any guardians of the person who is an alleged incompetent person;
(4) The names and addresses, so far as known or can reasonably be ascertained, of the persons most closely related to the alleged incompetent by blood or marriage;
(5) The name and address of any person or institution having the care and custody of the alleged incompetent person; and
(6) That the alleged incompetent person is incompetent, as defined in § 20-49-101(3).