Rights Group : Hu said that most of Du 's belongings had been taken from his residence including his laptops , copies of his books , and hardware used to edit his documentary . Author , filmmaker and activist Du has been detained by police in China . Du was last seen in the same month , the same month he released a documentary on a Beijing labor camp . Family members found two copies of a police subpoena at Rights Group 's residence in China .
Rights Group : Author , filmmaker and activist Du has been detained by police in China . Du was last seen in the same month , the same month he released a documentary on a Beijing labor camp . Family members found two copies of a police subpoena at Rights Group 's residence in China .