A US court said “limited” discovery was warranted in support of a pending investigation by anti-corruption authorities in Pakistan. The court ordered Arnold & Porter to answer a number of “basic questions” posed by Pakistan about the material within 30 days. Pakistan sought the material in aid of its efforts to overturn an US$850 million ICSID award issued in 2017 by a tribunal composed of Yves Derains of France, Horacio Grigera Naón of Argentina and David Edward QC of the UK.