China has strengthened its judicial protection of the disadvantaged social groups, said Wang Shengjun, China's chief justice, in a report delivered at the annual session of the National People Congress, the top legislature, on Sunday.

A total of 3,492 suspects involved in trafficking of women and children were prosecuted in 2011, and 5,368 victims or the victims' relatives who had difficulties in livelihood were helped by the people's courts at different levels, said Wang, president of the Supreme People's Court (SPC).

Wang added that coordinated with other departments, the people's courts at different levels strengthened the probe and prosecution of cases involved wage arrears of the migrant workers last year.

The courts system also pays more attention to cases involving people from Hong Kong, Macao, Taiwan and returned overseas Chinese, Wang said.