Two people have been convicted of being part of an international drugs conspiracy linking Devon to London and Cyprus.
Martin Payne, 27, from Plymouth and Helen Katsigianni, 67, from London, were part of a gang transporting heroin and cocaine from the capital to Plymouth over an 11-month period.
Payne and Katsigianni stood trial at Exeter Crown Court accused of taking part in the massive conspiracy.
Katsigianni was accused of making 26 trips to Devon, sometimes in the middle of the night, bringing consignments of heroin and cocaine worth tens of thousands of pounds.
The defendant, of Wood Green, changed her not guilty plea part way through the trial and pleaded guilty to the cocaine conspiracy and a money laundering offence.
Payne travelled between the two cities with drugs. When he was arrested in a car in Exeter in May 2017 police found cocaine worth £12,500 in the glove compartment.
He was found guilty by the jury of conspiracy to supply class A heroin and transferring criminal property. He had already admitted conspiracy to supply cocaine.
Both will now be sentenced, along with Pikounis, and other members of the gang, at a later date.
Prosecutor Mr Sean Brunton QC, laid out the prosecution case.
He said: “Over a 10-month period there are a known 33 trips and there may have been more. Of these trips payments of approximately £85,000 were paid into banks in Plymouth and transferred to London and then out of the country to Cyprus.”
Mr Brunton told the jury the ringleader of the conspiracy was George Pikounis, 28, who lived in Cyprus.
Phone evidence linked mother, son, Payne and other members of the gang to each other.
Mr Brunton said the gang members were ‘unlikely associates’ but operated in a ruthless world of drugs.
Katsigianni initially claimed she was completely unaware that her son was involved in drugs.
But Mr Brunton said text messages between mother and son showed that she ‘helped to run the drug business on a week-to-week basis’ while he was in Cyprus.
Payne had become Pikounis’ right-hand man after being released from Channings Wood prison in Newton Abbot in April 2016.
“When Payne emerged from prison he can be shown to commence regular contact with George Pikounis and Helen Katsigianni within two weeks,” said the prosecutor.
He would meet his co-defendant in Drakes Circus shopping mall and also travelled to London to see her.
Judge Tim Rose said told Payne he should expect to be sent to prison when sentenced.
He paid tribute to detectives who he said worked with great dedication to bring the case to court.
After the verdict DC Chris Louca, of the Serious and Organised Crime Team, said detectives were pleased with the verdict.
“The jury were extremely diligent in considering the evidence and taking their time to return guilty verdicts. We are very pleased with the result and the attention they paid to the case.”