He was waving a knife in front of the Spanish embassy, while yelling threats at people inside the building
There's been a bit of a controversy over whether excessive force was used, but in a complete inverse of the USA, most of the general public came in defense of the police

From OP's thread:

Watching Akira and all I can think is "Wow, I wish our riot cops showed as much restraint", and this shit is supposed to be dystopian lol.

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The entire setting is supposed to be a dystopian police state with rioting students, and it seems considerably better than right now in America.

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lol the cops, in the middle of a literal military coup in which they now own the state, refuse to fire on Tetsuo because he's a 'kid'.

He's a teenager at least lol.