You can be "briefly" (up to a day, and in some places up to the whole weekend if you are processed on Friday night) detained for pretty much any reason other than no reason.
One time, I was detained for three hours on suspicion of DUI because I was on my front porch with my car keys in my pocket... and not a drop of alcohol or drugs in my system, execept I was woozy from sleep deprivation.
Eventually they had me pee in a cup and then let me go. Since we talked IT with the medical person that was there, and he got a few tips out of me, I billed the PD for time at my consulting rate, and to my surprise six months later they paid the bill.
>The group was on East 17th Street about halfway down the block when police took a stand and ordered protesters to get on the sidewalk. Before the march, while the group was in Union Square, police handed out flyers and used loudspeakers to warn protesters that they would be arrested if they didn't stay on the sidewalk.
http://7online.com/news/more-than-140-protesters-arrested-in...
Here is the flyer that they were handing out: https://twitter.com/Azi/status/593536703324905473/photo/1
I mean, look at it that other way. People should not be able to openly obstruct traffic. If I were to go run out in the middle of Broadway and block traffic, I would probably be arrested. Just because someone is "protesting" doesn't give them free reign to violate the laws.
This is why public marches/protests require a permit. These guys did not have a permit to do so. See: http://www.nyclu.org/content/know-your-rights-demonstrating-...
> You may be able to march in a public street (as opposed to on a sidewalk) in some circumstances. To march in a street, you must obtain a permit from the Police Department. If you expect to have fewer than 1,000 people in your march, you can apply for a permit at the precinct in which the march will originate. If you expect 1,000 people or more or you prefer to use mail, send your application to: NYPD Investigation Review Section, 300 Gold St., Room 305, Brooklyn 11201. You can download a permit application from the front of the NYPD’s website
That doesn't mean that e.g. someone who had just joined the protest was aware of that warning.
It's unlikely that a protester missed one of the many forms of warnings (flyers, LRAD, verbal, etc) used in this case.
See:
https://www.youtube.com/watch?v=IQ996JYzFME
https://www.youtube.com/watch?v=2SpC9PAuHb8
https://www.youtube.com/watch?v=mZoEBJDgHQU <-- you can hear the LRAD warnings in the background of this video during the arrests.
If a large number of people want to get from point A to point B, even on foot, an accommodation of normal traffic laws should be made to allow that.
Why the hell are police arresting peaceful protestors?
The protesters were allowed to peacefully assemble in Union Square. The protesters were allowed to peacefully march on the sidewalk to anywhere they wanted to go in the city.
What the protesters were NOT allowed to do is obstruct traffic and walk in the middle of the street without a permit. The people that were arrested were the ones that were walking on the streets and blocking traffic.
You only need a permit if you intend to march on the streets. It's the same as you or I needing a permit to host a parade through Midtown.
Fuck you, NYPD.