The Delhi Police have prohibited the use of Unmanned Aircraft System (UAS) and the use of laser beams in the jurisdiction of the Sub-Division of Palam, Indira Gandhi International (IGI) Airport, as it poses a serious security threat of a terrorist attack and can also be hazardous to aviation safety. 📰 Drones, Laser Beams Prohibited Near Delhi Airport for 2 More Months Citing Security Reasons.