Author Jennifer Zeng, formerly of Beijing and now living in Australia, writes that by the end of April 2001 there had been approximately 830,000 arrests in Beijing of Falun Gong adherents who had been identified. There are no statistics available of practitioners who were arrested but refused to self identify. From our interviews with released Falun Gong practitioners, we know that the number of those who did not self identify is large. But we do not know how large.