The Diet on Thursday enacted a law banning drones from flying over important facilities such as the Prime Minister's Office while giving police the power to destroy drones if necessary. The legislation is expected to take effect before a foreign ministerial meeting of the Group of Seven industrial nations takes place in Hiroshima on April 11-12. Prime Minister Shinzo Abe's ruling coalition had been seeking early enactment of the bill to strengthen anti-terrorism measures ahead of the G-7 summit in Mie Prefecture in late May. The Civil Aeronautics Law was revised to regulate drone flights in September after a small drone was found on the roof of the building housing the Prime Minister's Office last April. A man was later convicted over the incident.