Less than 10 years ago, Germany, and especially Berlin, was held up as a beacon of openness and inclusivity in a western world rocked by Brexit and Donald Trump. Angela Merkel’s decision to take in thousands of refugees displaced by the war in Syria boosted her country’s reputation in progressive circles, with many international artists and academics choosing to make the German capital their new home.
Yet the conflict in the Middle East is showing Germany in a new light, highlighting fissures in society and the arts world that until now had been easier to ignore.
https://en.wikipedia.org/wiki/Arrest
An arrest is the act of apprehending and taking a person into custody (legal protection or control), usually because the person has been suspected of or observed committing a crime. After being taken into custody, the person can be questioned further and/or charged. An arrest is a procedure in a criminal justice system, sometimes it is also done after a court warrant for the arrest.
I think you might confuse it with detention, where the police would keep you in jail for a limited time.
As for who and what, from the article:
The officer who briefly removed Kalinowska from the protest told Al Jazeera that there was no formal list or any particular guidelines to follow.
“Really, I just use my intuition,” he said. “If I see something I think is bad, we go and get it.”
And this is indivative of the wider problem here. Police can harass and attack protests without having to uphold a legal standard. So even if there is no legal basis to what they do, just storming into the protest and dragging someone out is used as an intimidation and punishment without crime tactic. It is always a violent act where not only the person apprehended, but also the protestors around them are physically attacked.
I admit, it might be a language problem.
taking a person into custody (legal protection or control)
What does taking into custody mean then?
Is police taking someone aside for 2 minutes to ask some questions an arrest?
Because then I don’t understand the outcry over it, particularly compared to far more heavy-handed police action that definitely does happen every now and again.