New Delhi, Nov. 22 -- Lieutenant governor (LG) VK Saxena on Friday directed the police commissioner and chief secretary to roll out preventive and intelligence-driven measures to tighten digital surveillance and strengthen citizen-centric policing in the aftermath of the Red Fort blast earlier this month. Officials in the LG Secretariat said Saxena has asked Delhi Police to reinforce the standing order governing the sale, transport and storage of ammonium nitrate, the chemical used in the blast as an improvised explosive device. The letter instructs the force to maintain a digital record of all major transactions, including photographs of sellers and buyers, to ensure complete traceability of the substance. Saxena has also asked district-level officers to conduct an immediate security audit of high-footfall public spaces such as ISBTs, railway stations, cinema halls, parks and Metro stations. Police have been told to identify dark spots and submit reports for rapid strengthening of surveillance infrastructure. The LG stressed the need to bolster both human and technical intelligence. "Police intelligence network should be strengthened, both through human and tech intel, with a focus on vulnerable areas prone to radicalisation. Community outreach and citizen engagement should also be enhanced for more robust preventive policing," Saxena wrote. He also directed Delhi Police to initiate consultations with major social media companies, including Meta and X (formerly Twitter), for the "scientific tracking of radicalised content aimed at brainwashing citizens". Parallel to these policing instructions, Saxena has asked the chief secretary to strengthen administrative vigilance across professional and mobility sectors. The chief secretary has been directed to create a centralised database of medical professionals in Delhi, with mandatory verification of foreign-earned degrees and sharing of details with the police. "Create a central data repository containing records of doctors and paramedical staff engaged by hospitals, especially private ones, along with details of their medical degrees. In cases where medical professionals have secured degrees from foreign countries, information should also be shared with the police for secondary background checks," the letter states. The LG asked the chief secretary to work with vehicle-rental and mobility platforms to check the misuse of second-hand or permit-based vehicles that often bypass verification. Authorities were told to explore guidelines to ensure that ownership changes, rental histories and user identities remain traceable....