According to a press release from the Prosecution Authority, the people are suspected of procuring and storing large amounts of chemicals and other equipment with the intention of killing and hurting others. Those three individuals, along with three more people, are also suspected of sending money from Sweden to be made available for IS's activities abroad, and have thus been charged with breaking financing laws. Five of the six suspects are in custody.
Thomas Olsson, the lawyer for one of the defendants, told Swedish Radio News that his client has insisted throughout the entire investigation that he is innocent. In fact, all of the suspects deny committing any crimes related to terrorism.
Hans Brun is an analyst at the Swedish Defense University and has researched terrorism for a long time. He says that the situation is relatively unusual for Sweden, and that what's interesting here is that the suspects have been in custody for so long, which means that the court has felt that the evidence presented by the prosecutor was so serious as to merit their continued detention, but that it remains to be seen how the court judges the case.
The trial is set to begin on January 7th.