[yostrovs]

The man in the linked article did not display any signs or symbols, did not engage in speech, and did not "express" himself. If standing solemn is an arrestable offense, then anyone doing anything is subject to arrest. The police may think fascist thoughts are running through any random person's mind at this very moment.

[dudefeliciano]

This makes it sound like the police just passed by, saw him there and decided to arrest him, when in fact:

"On the day, he was asked to leave the area by a community officer who spoke to him for an hour and 40 minutes - but he refused."

https://www.bbc.com/news/articles/c4g9kp7r00vo