 For the next decade, Veltheim was following a series of con-games in Europe, but in 1907, he turned up in London, and started making threatening demands against Joel, who reported him to Scotland Yard, and the police arrested Veltheim.There was a trial for extortion, and Veltheim used the same defense he had previously used in Johannesburg, but the British jury was unconvinced and found him guilty.He was sentenced to twenty years' imprisonment.