A reformed gangster who said his criminal past was behind him is awaiting sentence for trying to smuggle mobile phone sim cards and heroin into prison.

Mikey Giwa was a prominent member of the notorious Don't Say Nothing gang, whose members have been jailed for offences including armed burglary and robbery.

In an interview with the Croydon Guardian in May , he claimed he had turned his back on crime and was working as a mentor with anti-knives organisation Lives Not Knives (LNK).

But the 23-year-old who has served time for affray, now faces another spell behind bars after he was caught trying to smuggle three mobile phone sim cards and a wrap of heroin into a friend he was visiting at Belmarsh prison on November 1, last year.

Giwa of Lancing Road, Croydon, pleaded not guilty to two charges of conveying articles into prison, but was found guilty by a jury following a trial at Woolwich Crown Court last month.

He was remanded in custody until his sentencing on August 9.