"During the investigation, I learned that students at the school got rid of various objects after the police raided the school last week," she says.
She doesn't know what the objects were, and since they are gone, it's impossible to assess whether they could have been evidence.
A total of five people are suspected of crimes at the boarding school. Two of them, who were arrested on Thursday on suspicion of assault, aggravated assault and unlawful coercion, have been released.
"Both were released after questioning. The suspicions remain, and the investigation is continuing," dos Santos said in a press release.
Three other people, all students at the school, are in custody in the case. Two are suspected of sexual harassment and aggravated assault, and one is suspected of assault and unlawful coercion.
The justification for the arrests includes the risk that evidence could be removed.
The prosecutor has previously said that the suspected crimes are considered to have occurred as part of an "ongoing system of control and punishment."
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