NEW DELHI: People cannot be prosecuted for expressing political dissent and posting decent humour material on social networking sites, the Centre told the Supreme Court on Tuesday while placing a compilation of offensive material which could not be allowed as they offended people’s sentiments and religious beliefs."Political dissent and decent humour cannot be prohibited," additional solicitor general Tushar Mehta told a bench comprising Justices J Chelameswar and R F Nariman.While placing the compilation, he submitted that it was only for the court’s perusal but agreed to give it to the opposite parties when they questioned whether it was a secret government document which could not be shared.The court was hearing a bunch of petitions challenging Section 66A of the Information Technology Act for its misuse by law enforcing agencies in arresting people for sending offensive messages.