ISLAMABAD, Jan 4 (Pakistan Point News - APP - 04th Jan, 2017 ) : Minister for Commerce Engr Khurram Dastgir Khan Wednesday said the Pakistan Tehreek-i-Insaf (PTI) itself had changed its lawyers in the Panama papers case and it should not criticise others. Talking to a private news channel, he said the PTI had failed to present even a single documented evidence regrading involvement of the prime Minister in the Panama Papers issue. The minister said the PTI could not prove corruption of a single penny by Prime Minister Muhammad Nawaz Sharif, whose name was not mentioned in the Panama Papers. The Pakistan Muslim League-Nawaz (PML-N) respected courts and would accept their decisions, he added. He said the PTI chief Imran Khan was a pioneer owner of offshore companies while his party leader Jahangir Tareen had admitted that forming an offshore company was not illegal.