Is he wearing a Kike hat?
No, it's the translation headphones. You can see it in the following picture (if you click on it):
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So they do not have a translator in the same room but use headphones and do not use a computer interface for the translator like zoom because?
Looks like old fashioned United Nations stuff on fiction TV shows
Simultaneous interpretation via headphones is actually pretty normal in many courts across Europe, including Germany. It's more efficient than so-called "consecutive interpreting".
