More and more schools are training their staff in situations of ongoing lethal violence.
In Örebro, for example, all upper secondary schools have undergone such education and now educations are also being carried out within compulsory school.
After Sweden's worst school attack occurred in the autumn of 2015 in Trollhättan, more and more actors began to develop courses that they sell to schools.
The pandemic has reduced the pace of education for many schools, including in Örebro.
But also in Malmö, which was recently shaken by an assassination attempt.
But what happens when the participants take protection and try to protect themselves from becoming deadly violence. See the clip from Almbyskolan in Örebro