Former Democratic Party legislator Tsang Kin-shing, speaking after prosecutors dropped a charge of noise pollution against him for using a loud-hailer, yesterday accused the Government of political censorship. Mr Tsang, 44, better known as 'The Bull', was summonsed to appear in Western Court for causing annoyance to members of the public when he used a loud-hailer outside World Wide House, Central, at 1pm on July 20. He was accused of breaching two sections of the Noise Control Ordinance while canvassing votes for the September Legco election, in which he ran as an independent candidate. The prosecution offered no evidence and dropped the charge. A spokeswoman for the Department of Justice said the decision was based on the grounds that 'there was no reasonable chance' that the prosecution would win. Outside court, Mr Tsang said the grounds for prosecution were tantamount to political censorship because they involved no scientific method for measuring the decibel level. The activist, who lost in the election, said the summons was prompted by three complaints made against him on the same day. He said he was the target of what he branded a government campaign to suppress and harass mavericks such as himself. 'There were hundreds of loud-hailers in use on the streets during the election campaign. Why was I the one to be prosecuted?' Mr Tsang said.