Umar Cheema was appointed to investigate on Pakistan section of Panama Papers.
How is he credible?
Cheema acted as a postman. He did not conduct an investigation. His job was to take Sharifs' point of view before ICJ public.
It's been 3 years and still no signs of ''huzur yeh hain woh zaraye''. All we got were 12th hour bogus Qatari letters and a poorly done Calibri forgery. On top of that, Dar, Hussain & Hassan et al are absconders.
Also, the original thread by Malik dissects contents of the allegations made by Noorani.