He had every right to detain to investigative purposes.
It was justified.
Her failure to comply was doing wrong. Then she resisted.
So just stop you clearly have no idea of what you speak.
Each action that were discussing was justified.
He ran after the kids who took off instead of following his orders.
The other points were already mentioned.
The only emotions present was his swearing.
Everything else was justified. Again, show it wasn't. The Chief surely hasn't. So how about you?