Sunday's Stockholm derby between Djurgården and AIK had to be cancelled after masked supporters tried to enter the pitch. The police are investigating the scenes of the scandal as violent riots – and have begun work to try to identify the culprits.
Last week, the verdict was handed down after the violence at Friends Arena after the derby between AIK and Hammarby in August last year. Seven men were charged with violent rioting, six men were convicted – and more charges are expected.
Extensive investigation
According to prosecutor Marie Bastin, extensive investigative work is behind the convictions.
"It's extremely resource-intensive. There is a lot of film material to go through and it takes time to bring in so many people for questioning, she says.
Often those involved are masked and the investigation material shows how the police have invested considerable resources in identifying the men. Among other things, by comparing images of individuals from the violence with images from surveillance cameras outside the arena.
In one case, a tattoo on his arm became crucial in proving the identity of a masked man.
Had access ban
One of the men who was convicted had a refusal of entry and was not supposed to have been allowed into the derby last year.
"It's regrettable, but I imagine it's difficult for the police and organizers to enforce these bans," says Marie Bastin.