A prosecution drugs expert who examined messages recovered from Herbert concluded they were consistent with the wholesale kilo supply of Skunk cannabis which had been imported from America, the court heard.
Mobile phone footage of the rapper handling a bag of cannabis and allegedly complaining about the poor quality was also played in court.
A number of photographs showed Herbert handling large amounts of cash, the prosecution claimed.
The court heard two sets of weighing scales and a cannabis grinder were recovered from Herbert’s London home in Lonsdale Road.
Mr Scobie told the court his client was an internationally recognised musician with a legitimate income and made videos which demonstrated large amounts of cash.
At the time of this activity Herbert had earnings in excess of £3m, Mr Scobie said.
Herbert is currently remanded in custody at HMP Wormwood Scrubs and is following the hearing via a video link from the prison.
Digga D is one of the UK’s leading drill performers, with his tracks getting millions of views online.
Drill started in Chicago in the early 2010s but, in recent years, UK artists have adopted the genre.
The two-day hearing continues.
