A long-running trial involving a series of frauds, including wine investments, running into millions of pounds has concluded with the acquittal of the final defendant.A jury could not reach a verdict on 52-year old Robin Grove’s role in Vintage Hallmark, which defrauded mainly Canadian and American investors of £30 million. Fellow defendant, Richard Gunter, has already received five years imprisonment for his part in the scam in addition to more than four years for a similar wine investment scam, Vintage Wines of St Albans.