Beijing police has already identified 112 suspects including 27 foreign women and put them under arrest early this month for participating in a sex trade, China Daily reported on Monday.

A spokesman for Beijing police told media that the raid is part of its massive campaign against prostitution and drugs launched in April 2010. He also stated the criminals dispatched messengers to distribute name cards bearing personal name, contact information, and lewd images and caption to public places like hotels and car windshields, or directly hand them over to men.

Upon receiving calls from clients, the leaders of the criminal networks arranged for the hotel rooms, where the prostitutes will be sent over.

In a related AP report, the Chinese police claimed the 27 foreign women make up Beijing's largest number of foreign prostitutes. The authorities also refused to reveal their nationalities.

Of the 112 suspects, 70 were women and 42 were men. Beijing police also said 62 of those are placed within criminal detention while 19 suspects are within public security detention.

The economic boom in China also allowed prostitution to flourish more.

A statement issued by Beijing Municipal Public Security Bureau said in spite the tight censorship controls implied on the internet, criminals involved in China's prostitution still uses the world-wide web for their marketing.