Tamil Nadu police crackdown: 443 arrests, 15,000+ checks, drone patrolling, and heightened surveillance of habitual offenders to curb crime and restore public order. Comprehensive security measures implemented by Chennai Police ahead of Diwali, including additional personnel, surveillance drones, temporary watchtowers, and mobile patrols to ensure public. Chennai: Tamil Nadu Chief Minister C Joseph Vijay on Sunday extended greetings to the state police force on Police Day and said his government would prioritise.