Twitter could face a fine for refusing.
Twitter has until Friday to reveal the tweets of a member of the movement "Occupy Wall Street” to the Manhattan prosecution. If it refuses to do so, it would face a charge of contempt and be fined, Reuters reported.

The order was issued on June 30 by Manhattan Judge Matthew Sciarrino. It states that the company based in San Francisco must provide the tweets of Harris Malcom and has 73 days to comply.
Harris, Occupy member, was arrested in Brooklyn after attending a mass demonstration.
"They have until Friday to rectify any potential contempt”, Sciarrino said to Terryl Brown, the attorney representing Twitter.
The reason for this request is that Manhattan prosecutors seek to address Harris’s defense, holding that the police allowed the demonstrators to march down the street, only to be arrested immediately afterwards for disturbing public order and impede traffic.
Lawyers from other detainees also handle this statement.
However, the prosecution argues that Harris tweets prove otherwise, and that would prove that Harris knew that the police told protesters not to walk on the road, Reuters reported.
Twitter has not provided information based on the argument of user privacy. He had previously appealed for refusal, but was rejected.