Prime Minister's Special Assistant on Information Firdous Ashiq Awan hit back at Pakistan Muslim League Nawaz (PML-N) Vice President Maryam Nawaz, minutes after the latter revealed 'video evidence' of former prrime minister Nawaz Sharif's innocence in Al-Azizia corruption reference. Addressing a press conference in Islamabad, the SAPM said the forensic examination of 'controversial' video tape will be conducted to determine its authenticity.