Similar concerns had already been expressed during the consideration of the second periodic report by the Committee , as well as in the concluding observations of the Human Rights Committee regarding the fourth periodic report submitted by Spain under article 40 of the International Covenant on Civil and Political Rights . Furthermore , the European Committee for the Prevention of Torture ( CPT ) also reported complaints of torture or ill-treatment received during its visits to Spain in 1991 and 1994 , in particular from persons detained for terrorist activities .