Fifteen drug dealers arrested in an undercover police investigation pleaded guilty to charges involving the supply of heroin and cocaine on the streets of Norwich.

All the defendants, who appeared at Norwich Crown Court, were arrested as part of Operation Granary, a probe involving undercover police officers making test purchases from suspected dealers, in Norwich.

They included Eddie Stannard, 40, the twin brother of drug user Steve Stannard, who was stabbed to death by London dealer Hassiem Baqir in November 2016.

Stannard, one of several of the defendants who appeared over a video link from prison, pleaded guilty to two counts of supplying heroin to the undercover officer on a date in December, last year, and on February 20, this year.

His barrister Andrew Oliver said he had played a lesser role: 'He is a user who has supplied the undercover officer on two different dates.'

His case was adjourned for reports and Judge Anthony Bate asked for an update on how he was trying to address his drug habit while on remand.

Other defendants included Ocean Todd, 19, who admitted supplying Class A Drugs; Rufin Kongolo, 23, who admitted supplying Class A and offering to supply Class A, Kelly Cornwall, 41, who admitted supplying Class A drugs.

Michael Fowler-Nicholson, 24, admitted supplying Class A and Ali Khan, 26, admitted possession of cocaine and heroin with intent to supply and supplying Class A.

Alex Hood, 30, and Junjs Renins, 34, of Norwich, also both pleaded guilty to supplying Class A,

Manley Vidal, 26, admitted being concerned in the supply of heroin and cocaine and supplying Class A drugs.

Kenneth Martin, 36, admitted supplying Class A and Kenneth McGowan, 42, pleaded guilty to possession of Class A drugs with intent to supply and supplying Class A drugs.

Benjamin Matthews, 43, admitted supplying Class A drugs, James Dexter, 42, admitted supplying Class A on November 17 last year and Michelle Clarke, 48, admitted supplying cocaine on Jan 22 this year. Idiris Mohamed, 19, pleaded guilty to being concerned in the supply of Class A and possession with intent to supply Class A.

Judge Bate adjourned sentencing to a date to be fixed.