UP STF raids PFI premises in Delhi's Shaheen Bagh after questioning youth leader Rauf Sherif UP STF raids PFI premises in Delhi's Shaheen Bagh after questioning youth leader Rauf Sherif After questioning Popular Front of India's (PFI) youth leader Rouf Sherif, the Uttar Pradesh Police's Special Task Force (UP STF) on Sunday conducted searches at PFI's Shaheen Bagh office. advertisement UPDATED: February 21, 2021 16:44 IST The raids were conducted after UP STF questioned PFI youth leader Rauf Sherif. (Representative photo: PTI) The Uttar Pradesh Police's Special Task Force (UP STF) conducted searches at Popular Front of India's (PFI) Shaheen Bagh office on Sunday. Various other premises of PFI in Delhi were also raided by the officials.