Protesters

An Occupy Wall Street protester is challenging a court’s decision requiring his tweets to be handed over to New York prosecutors, arguing that his First and Fourth Amendment rights should apply to tweets like they would to information stored on a personal computer or phone.

At least five journalists have been arrested in Manhattan while covering Occupy Wall Street protests marking the one-year anniversary of the movement.

New York City police said the department has arrested 146 people between Saturday and this afternoon. Those arrested include Hunter College student journalist John Bolger, economic journalist Mark Provost, illustrator Molly Crabapple and photojournalists Julia Reinhart and Charles Meacham.

After a state appellate court earlier this week denied Twitter's request to stay the proceedings, lawyers for the social networking company argued that disclosing an Occupy Wall Street protester's tweets and subscriber information would negatively affect those who use the social media service.

A large, well-trained law enforcement presence and fewer, more peaceful protesters allowed the Democratic National Convention in Charlotte, N.C. to run smoothly and prevented journalists’ arrests, according to police and lawyers who followed the events.

The 2012 Republican National Convention last week saw minimal arrests, no violence and fewer protesters, a marked contrast from past conventions. The Democratic convention is also starting off with few incidents.

Media advocates are expressing outrage over the arrest of a New York Times freelance photographer Saturday night. New York police allegedly knocked the journalist to the ground, beat him and took his two cameras and press credentials.

A nearly 200-page independent oversight report released by a group of human rights lawyers this week found that New York police officers often violated the rights of journalists covering Occupy Wall Street protests and arrested at least 18 of them.

The University of California Berkeley Police Department has settled with an independent photographer who sued the department after he was arrested and had his photographs confiscated while covering a protest in 2009. As part of the $162,500 settlement, the department has also agreed to change its policies towards the media and train officers about journalists' legal protections.

A New York criminal court ruled that prosecutors seeking information about a defendant’s Internet activity can subpoena third-party online service provider Twitter. The request is not a government intrusion under the Fourth Amendment, he held, but a federal law requires a search warrant for some recent information.

In one of the first Occupy Wall Street cases to proceed to trial, a New York University student journalist charged with disorderly conduct was acquitted on Wednesday after video proved he did not commit any violation while covering a protest in January.

While photographing the march in downtown Manhattan on Jan. 1, Alexander Arbuckle was one of many arrested for disorderly conduct for allegedly standing in the streets and blocking traffic after multiple police warnings to stay out of the roads.