WHAT were they thinking!?
At your first hearing, no. The officer does not need to be there. Have you been cited in to juvenile court (or to juvenile probation)? Or to traffic court?
Chances are they will give you an option of informal probation and no report to DMV if to probation. Otherwise, if you fight it, chances are pretty good that the officer's not going to show in another county. If its CHP, he might ... he'll get paid the same whether he is on the streets in Kern or L.A. County. If it's a local officer, it's far less likely he'd bet there ... that can be a long drive.