There are popular TV programs about the work of the police on TV. People like them because they are interesting and useful.
There is a TV program called “PoliceFive”. It goes for five minutes once a week. A TV reporter talks about crimes (犯罪) in the city. He asks people for help because the police station needs their help.
During the week the TV reporter shows pictures of lost paintings, lost cars and other lost things. When people see pictures of such things on TV, they may remember something and tell the police about it. With their help the police may catch(抓住) more thieves.
Sometimes the police find a car or something expensive that was lost, and the TV reporter shows them on TV. Then the owner may see them and get them back.