State in Interest of Besendorfer

*743MAUGHAN, Justice:

Defendant appeals from an order of the Juvenile Court, wherein he was found to be within the court’s jurisdiction as provided in Sec. 55-10-77(1), enacted 1965, on the ground defendant had violated Sec. 76-5-103(l)(a), as enacted 1973, amended 1974. We reverse in part, and remand for further proceedings. All statutory references are to U.C.A.1953.

Petition was filed alleging that defendant, on or about January 14, 1975, in violation of See. 76-5-103(l)(a), assaulted and intentionally caused serious bodily injury to W. Kory Jackson.

A hearing was held March 15, 16, 1976. At its…