The man, who is in his 35s, is charged with, among other things, several cases of aggravated exploitation of children for sexual posing, sexual harassment and aggravated child pornography.

- Through threats and sometimes through flattery, he has persuaded the girls to perform sexual acts on themselves.

Either send nude photos or carry out what can be considered rape of a child, that is, penetrate oneself with fingers or objects, says chamber prosecutor Pontus Melander.

The man is also suspected of having sent masturbation pictures and videos of his sex to several of the victims.

Then the man was tracked down

The accused man has been chatting with the children via apps for a long time.

The whole thing was discovered in another region which, through IP tracking, was able to point out an address in a municipality in Uppsala County.

According to Pontus Melander, the state of evidence is very good.

- What makes us able to track quite a few plaintiffs is that he had an app that filmed everything that happens on the screen.

We can see what happens and recreate it.

How do you see the investigation taking so long?

- There are many people to hear.

Then it's a detective's job to track down plaintiffs.

There is a dark number, we have tried to track other vulnerable people that we could not find.