The trial, which is expected to take at least seven months, is being held in Sundsvall, in northern Sweden. But because of the large number of defendants, some will be sitting in courtrooms in five other cities, linked to the main proceedings via video links.
The alleged leader of the drug ring did not show up to the first day of the trial. Chief prosecutor Marina Amonsson told news agency TT, "It bothers me that the person who earned the most money in this case isn't here. But his absence doesn't affect the trial."