The star's brother Jermaine makes claim...

Michael Jackson’s brother Jermaine has alleged the troubled star was mistreated while in police custody during his recent arrest.

Jermaine would not give specific details of his claims. “He was very much mistreated. The pictures will show you everything,” he told MSNBC television.

California’s Santa Barbara Sheriff’s Department, which is investigating sex abuse claims against Jackson, has denied the claim.

A spokesman insisted the singer was treated “with courtesy and professionalism throughout the process” and no complaint had been made.

Michael Jackson’s camp have refused to comment on the claim.

The star is on £1.8million bail awaiting trial on charges of sexually molesting a teenage cancer sufferer at his Neverland ranch.