A magistrate has raised concern about the potential delay in finalising the case against a 15-year-old girl charged over an alleged hit-run crash that killed a married couple.

The girl, who cannot be named, faced a children’s court on Monday following her arrest after the April 21 crash in Wantirna South that killed Matt Goland and Bita Zaeim, a couple from The Basin who had been married a year.

Police allege the girl was a passenger in a stolen Lexus SUV that was driven by Eric Victorsen, who is accused of running a red light at speed and crashing into the couple’s Holden Commodore.

Mr Victorsen, 19, is charged with two counts of culpable driving causing death. The girl faces two counts of being an accessory to culpable driving. Police allege she assisted Mr Victorsen by ‘‘attempting to impede his apprehension’’.

In a short administrative hearing on Monday, a magistrate said she was concerned the girl faced a long wait in custody while police prepared the brief of evidence against Mr Victorsen. His lawyers are not due to receive the brief until mid-July.