I watched the video. Its hard to tell whether the officer first opened the knife partially before flicking. One thing that is clear though, is that the uploader admittedly had the knife clipped to his pocket, which you can not do within NYC. I do not agree with the laws being imposed, I'm simply aware of them. I carried my sebenza clipped to my pocket tons of times in manhatten, but once I realized (by advisement of another BF member) that the law did not allow it, I began carrying in-pocket. It's a shame that these restrictions are being placed on law-abiding citizens, but I'm glad knife rights has a pending suit against DA Vance.