During the past decade, the municipality of Södertälje has been exposed to organized welfare crime, where both a home service scam and an assistance scam have drained the system of many millions.

It was the starting point for cooperation between various authorities such as the police, the Swedish Social Insurance Agency and the Swedish Tax Agency.

The municipality's work is now highlighted as a positive example that has given good results in the fight against welfare crime.

- We need to fight networks through our own networks, says Roger Svanborg, former head of the investigation unit in the municipality, in the clip above.

"Will never come to port"

Anna Flink, now head of security at Södertälje municipality, was present when the work against cheating started just over five years ago, then as head of income support.

- We decided not to be a paying authority but we would become an investigating authority.

We needed to see if the certificates that came in to us matched reality.

It was about everything from preschool places and building permits to environmental permits and other permits, she says.

Are you in port now?

- We will never come to terms with this.

As long as there is money, there are interests.

But it is incredibly important that we relate to the taxpayers' paid money in a legally secure way, she says.