For just over a year now, Magdalena El-Sayed and her two colleagues have been working three and a half days a week under the same roof as the police in Rinkeby.

- Through faster communication, we have also been able to make efforts for young people who are in crime before, she says.

Last weekend, National Police Chief Anders Thornberg emphasized that the social services must be strengthened to stop gang violence.

According to the Swedish Crime Prevention Council, almost 150 municipalities have some form of collaboration between school, social services, police and leisure.

Stockholm Municipality is one of the municipalities that believes that the social services and the police work in the same building.

- I think we need to stop thinking in downspouts between authorities.

We need to understand each other's legislation and assignments and then we must sit more together and not work apart, says Jan Jönsson (L), Social Citizens' Council in the city of Stockholm.

There are certain risks according to researchers

Michael Tärnfalk is a researcher in social work at Uppsala University.

He believes that there are some risks with the social services and the police working in this way.

- Many young people who are involved in crime already have a distrust of the social services.

When they see that the social services "ally" with the police, it can be strengthened, he says.

Social Secretary Magdalena El-Sayed believes that collaboration is a concept against gang violence.

- We believe in trying early on to find young people who are on their way into crime.

But also those who are in it and those who want to quit.

This collaboration contributes to this.