More traders have come forward to complain about the expert witness in the Libor trials.
The Metropolitan Police has had four requests to investigate Saul Haydon Rowe, the prosecution witness paid for by the Serious Fraud Office, over allegations including perjury and fraud.
Two former Barclays traders, Alex Pabon, who was released from prison this year, and Stylianos Contogoulas, who was acquitted at his own trial, echoed a request made last month by lawyers for Tom Hayes and Ryan Reich, who said that Mr Haydon Rowe should be investigated over his conduct.
Messages disclosed at the trial of Mr Contogoulas and Mr Reich, who also worked at Barclays and also was acquitted, showed Mr Haydon Rowe asking for help from contacts.
In one message he wrote that he needed help to “explain a few emails and look knowledgeable”.
Lawyers for Mr Pabon wrote in his complaint that there were “good grounds to suspect that Mr Rowe has committed serious criminal offences, including fraud by failing to disclose information, fraud by false representation and perverting the course of justice”.
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At least 100 previously undisclosed texts and emails were revealed to have been sent by Mr Haydon Rowe before and during the Libor trials. Turing Capital, the expert witness firm co-founded by Mr Haydon Rowe and which he has subsequently left, was paid more than £400,000 by the SFO. A former City trader, Mr Haydon Rowe has given expert witness evidence in all the Libor trials, from 2015, with the prosecution of Hayes, who was jailed for 14 years.
The Criminal Cases Review Commission is examining Hayes’s conviction. Karen Todner, his lawyer, has asked the SFO to disclose any emails and texts sent by Mr Haydon Rowe relevant to his trial.
In a statement, Mr Haydon Rowe said: “I acted in good faith at all times during my involvement in these cases.”
The Metropolitan Police has acknowledged receiving complaints over Mr Haydon Rowe’s testimony and has said that the “correspondence awaits assessment and therefore no further comment is appropriate at this time”.