But David Poley of drinks industry body the Portman Group said the problem with making the labelling scheme compulsory was that EU regulations said units could not be included on winelabels.
To do the sleuth work for the various lawsuits, Koch has assigned private investigators (who he described as ex-CIA and ex-FBI agents) tasks ranging from tracking down printers of counterfeit winelabels, to carbon-dating bottles and listening in on a phone call with Greenberg.