Lügde, Bergisch Gladbach, Münster - cases of child sexual abuse continue to shock the public.

In the case of Madeleine McCann, investigators are also assuming new findings from a crime.

In an interview with WELT, criminal psychologist Lydia Benecke explains what goes on in the mind of sex offenders, what role a reduced capacity for empathy plays and how one can protect one's children from assault.

WORLD:

Sexual abuse or violent crimes against children cause one thing above all: Anger and bewilderment.

What is going on in the mind of such perpetrators?

Lydia Benecke:

There are basically several types of perpetrators and different motivations behind them.

Most of the time, child sexual abuse occurs in the child's immediate social environment.

The perpetrator has an emotional relationship with the child.

WORLD:

In the "Maddie" case, however, according to new information, a stranger with a long criminal record could be the perpetrator.