A number of international NGOs and human rights organisations have criticised the PRC government for failing to comply with the UN Convention on the Elimination of All Forms of Discrimination Against Women, accusing PRC of penalising and abusing lower tier prostitutes, many of whom are victims of human trafficking, while exonerating men who buy sex, and ignoring the ongoing problems of governmental complicity and involvement in the sex trade industry. The Convention on the Elimination of All Forms of Discrimination Against Women reads: "Art. 6": "States Parties shall take all appropriate measures, including legislation, to suppress all forms of traffic in women and exploitation of prostitution of women". However, it does not advocate a system of legal and regulated prostitution. There has, though, been some calls for legalization; a minor rally for this caused was held in 2010 organized by sex worker activist Ye Haiyan, who was arrested by police for her role in organizing the protests.