Updated: July 04, 2021 13:05 IST Police in Mylapore, Triplicane and Adyar are using drones for monitoring the crowd for COVID-19-appropriate behavious on the beach. Share Article AAA When the drone shows someone without a mask or in a group without maintaining physical distancing, the police warns them using a public address system. | Photo Credit: Special Arrangement Police in Mylapore, Triplicane and Adyar are using drones for monitoring the crowd for COVID-19-appropriate behavious on the beach. In a move to enforce physical distancing and wearing of masks on Chennai beaches, the city police is using drones to monitor the crowd and public address systems to warn them.