Do China police have helicopters patrolling the city every day?

At present, only a few cities in China, such as Beijing, Wuhan, Guangzhou, Zhengzhou and Nanjing, have air marshals. Because helicopters are too expensive, an airplane costs 30-40 million yuan, and each airplane consumes 6.5438+million yuan in maintenance costs every year. In this way, the cost of helicopter flight will be more than 3000 yuan an hour. A municipal public security bureau equipped with 2-3 planes might as well spend money on the cutting edge, improve police equipment and vehicles, patrol more police cars and recruit more patrolmen, which may be better than the face-saving project of helicopters.

You may be watching a movie and think that American police are flying in the city every day. In fact, American police only have helicopters when they are on duty. Usually, you fly a helicopter to patrol the sky. What can you see? Fly high, can't see the ground clearly, fly low, and the noise disturbs the people. What's more, it also occupies the already tense air resources, because aviation is controlled, otherwise small planes can easily fly around large passenger planes.

Helicopter searchlights are very useful for deterring escaped criminals and recalcitrant criminals. Otherwise, if you hold a searchlight with a huge wattage on the plane at night, won't it cause unnecessary panic among the citizens?