Britain and America pledged to spearhead a worldwide hunt for “tens of billions” stolen from Ukraine by its former president and his cronies on Tuesday at a London summit called to beef-up the country’s anti-corruption efforts. Theresa May, the Home Secretary, said an order to freeze £23 million of suspect funds as part of a Serious Fraud Office investigation was a demonstration to the people of Ukraine that foreign governments “stand behind” Kiev as it attempts to recover looted funds. The Crown Prosecution Service and National Crime Agency has already sent officials to Ukraine following the flight of Viktor Yanukovych, the former president who left the country bankrupt and divided between pro-Revolutionaries and Russian sympathisers. Oleh Makhnitskyi, Ukraine’s general prosecutor, said his country has already identified some £1.8 billion of stolen assets and expects to find tens of billions taken by an “organised criminal group” headed by former president Viktor Yanukovych. He ...