What does the public security double struggle mean

It refers to the public security organs' crackdown on criminal activities involving two special types of crimes. Public security double combat usually refers to the public security organs through joint action, to combat these two types of criminal activities, in order to maintain social security and public **** security. These two types of special crimes are "pornography, gambling and drugs" and "theft, robbery and fraud". Among them, "yellow gambling and drugs" refers to activities involving yellow, gambling and drug crimes, while "theft, robbery and fraud" includes theft, robbery, fraud and other illegal and criminal behavior.