In adjudicatory hearings to determine if a child is delinquent or in need of supervision, any person entitled to service of summons or the state shall have the right to demand a trial by jury, which shall be granted as in other cases, unless waived, or the judge on the judge's own motion may call a jury to try any such case. Such jury shall consist of six persons.
Okla. Stat. tit. 10A, § 2-2-401