Focusing on the media:
Link to the referred video: (can't verify without instagram here)
Couple more clips of the finest HK "government" can buy expressing themselves tonight. Just the tip of the iceberg of course.
"None of the 48 arrestees in Yuen Long or the 3 in Causeway Bay appear to have been arrested for a specific act, such as blocking a road. Their â€˜crimeâ€™ appears to have been Being There. Freedom of assembly in #HK is virtually suspended. "
Photos of that suspect/popo were posted on Reddit recently before the posts were pulled by the mods there (Reddit has significant PRC investment, which may or may not have played a role; it has in the past, but I do get the point).
The "evidence" wasn't posted there so I wouldn't know about that.
What I do know is that when cops aren't held to account for their actions, these kinds of things are bound to happen. Arresting a pro-dem district councillor "by the rule-by-law book" isn't going to change anything for the better.