A former Goldman Sachs banker convicted of laundering the ill-gotten gains of a former state governor of Nigeria has been ordered to pay £7.3m by a British court, or face a decade more in prison. The UK’s National Crime Agency said in a statement on Friday that Ellias Nimoh Preko, a Harvard graduate and Ghanian national, must pay the money within three months. a four-and-a-half year sentence in 2013 for his part in washing almost $4m of Ibori’s dirty money, and confiscation proceedings are still continuing against Ibori himself.