ISLAMABAD: The Pakistan Tehrik-e-Insaaf (PTI) on Friday approached the international forensic companies for an investigation into the offshore business of the Sharif family revealed after a recent mega leak by the Panama Papers. Sources told Daily Times that PTI Chairman Imran Khan held separate meetings with two international forensic companies. He was flanked by Jehangir Khan Tareen and Aleem Khan. Before departing to London, the PTI chairman had tweeted that he would meet experts from two companies which specialize in forensic tax audits. Sources said the PTI chairman has tasked Tareen to finalise the terms of reference (ToRs) with those two companies. He would also finalise modalities and scope of the investigation and a final decision is likely today. Khan wants the forensic audit to complete as soon as possible since the PTI has to launch another street agitation after April 24 if the government fails to constitute an independent commission to be headed by the chief justice of Pakistan. The PTI delegation told the forensic experts that Sharif family might own more than four offshore companies. They were asked to investigate the secret business and commercial interests of the Sharif family in all those jurisdictions which are considered tax havens for morally and financial corrupt politicians. The forensic experts, sources said, would hold more meetings with the PTI leaders as long as they are in London. The two sides would also negotiate the financial cost of such investigation since it involves hectic travelling and rummaging through the financial and legal data. The PTI chairman has already requested other opposition parties to join his campaign to expose the alleged corruption of the ruling family. He was of the view that Sharifs had been left with no moral and political justification to hide their wealth from the nation.