The first Briton to have his Twitter identity forcibly revealed by a court is seeking to sue the council that blew his anonymity and force a judicial review of the case.
A review could have implications for whistleblowing websites - and for a council that used public funds to unmask a perceived detractor.
In April, South Tyneside Council won an order from the Superior Court of California forcing Twitter, which is based in the state, to release details about four accounts. The council claimed the information - including contact details and computer addresses - could reveal who is behind the Mr Monkey blog, which it claimed was spreading libellous comments.
South Tyneside Councillor Ahmed Khan admits being the owner of one of the Twitter accounts, but maintains he is not "Mr Monkey".
Mr Khan, an independent councillor, claims he has broken a number of stories about the council, including details behind a controversial deal over the refinancing of Newcastle Airport. He claims that since his anonymity was compromised people are reluctant to come to him with stories.