WikiLeaks founder Julian Assange says his house arrest over sex allegations is hampering the work of the secret-spilling site, and his supporters accuse Britain of spying on him.
The 39-year-old Australian has spent six months at a supporter's rural estate as he fights extradition to Sweden, where he is accused of the rape and sexual assault of two women.
Supporters have released a video claiming police had set up surveillance cameras near the house to record license plates of visiting cars.
Mr Assange's bail conditions require him to wear an electronic tag and report to police daily.
Last night Mr Assange said that he had become "a fixed target" for snoopers.
In a separate development yesterday, a supporter of the US army private suspected of supplying classified documents to the WikiLeaks website refused to testify to a federal grand jury, accusing the US justice department of using fear tactics to intimidate advocates of transparency in government.
David House, a founding member of the Bradley Manning Support Network, said he invoked his Fifth Amendment constitutional rights against self-incrimination after being subpoenaed to the federal courthouse in Alexandria. Prosecutors have convened a grand jury there to investigate the WikiLeaks disclosures.