A teenager appeared before magistrates after admitting assault and damaging bracelets and an iPhone worth a total of £500.
Stephen Turton, 18, of London Road, Grantham, admits assaulting a female by beating her on September 14 and criminal damage on the same date.
He is accused of committing the offences while subject to a conditional discharge for obstructing police.
The court heard that Turton was ill when he was due to see probation and no pre-sentence report was available. The case was adjourned until December 8 for a report to be prepared.