(BBC) - Twitter spent months resisting the call to release the messages, saying to do so would undermine privacy laws.
If the messages were not handed over on 14 September, Twitter would have been in contempt of court and faced substantial fines.
The Manhattan district attorney's office wanted the tweets to help its case against protester Malcolm Harris.
It believes the messages undermine Mr Harris' claim that New York police led protesters on to the Brooklyn Bridge to make it easier to arrest them. It claims the messages will show Mr Harris was aware of police orders that he then disregarded.
As the large number of messages are no longer available online, the Manhattan district attorney took legal action to win access to Mr Harris' account and three months' worth of messages... Source/Origin >> Read More