In Re Korry K.

The minor petitioner herein challenges an order detaining him in juvenile hall (Welf. & Inst. Code, § 636) pending his jurisdictional hearing in a section 602 proceeding. The Supreme Court issued an order to show cause returnable before this court. Shortly thereafter a jurisdictional hearing was held and the question became moot as to petitioner. The issues raised by the petition involve the scope of evidence admissible in juvenile detention proceedings, issues of broad public interest. Because of the limited time between detention proceedings and adjudications of the juvenile court’s jurisdiction under section 602, it would be virtually impossible, as a practical matter, to find a case in which the issue did not become moot as to the petitioning minor before an appellate court could issue a final ruling. We therefore consider the merits of the issues raised. (In re William M. (1970) 3 Cal.3d 16, 23 [ 89 Cal.Rptr. 33 , 473 P.2d 737 ]; In re Dennis H. (1971) 19 Cal.App.3d 350, 352 [ 96 Cal.Rptr. 791 ].)

The section 602 petition alleged that petitioner had violated Penal Code sections 245, subdivision (a) (assault with a deadly weapon), 242 and 243 (battery) and 594,…