Victims of violence suffer again when they meet the defendant in the courtroom. Especially abused, traumatized children have to be protected from another meeting with the offender. But often there is no evidence against the defendant without the hearing of the affected child.
In some cases witnesses are nearly unattainable e.g. because of long distances. This often extends the duration of trials. In many cases it is not necessary that the parties are present in the courtroom. They can save time and many when being heard from distance. By reducing travels, the CO2-emission is lowered.
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