A Birmingham MP is taking the Government to court over what he says is a failure to answer MPs' questions.
John Hemming (Lib Dem Yardley) has requested a judicial review after claiming Ministers refused to provide detailed answers to his questions in the House of Commons.
He will represent himself in London's Royal Courts of Justice in October, after teaching himself law in the Commons' extensive library.
Mr Hemming claims he has been denied up-to-date information on topics including hospital deficits, payments made by the NHS to private contractors, Britain's gas supply and plans to expand airports.
He has asked questions using formal House of Commons procedures and by writing to civil servants, he said.
The action comes after he wrote to Tony Blair claiming Ministers were "acting unlawfully" by providing "an evasive or misleading response or even no real response" to questions.
Mr Hemming will argue Ministers have a duty to provide information, and are effectively preventing him from doing his job as an MP if they fail.
The hearing, on October 30, will determine whether he is able to take the case further.
It is expected to focus on the question of whether the court has the authority to order Ministers to provide fuller answers.
Mr Hemming said: "This is a complex constitutional question and although I am not a qualified lawyer there is not necessarily anyone better able to argue the case.
"It is not an area people have done a lot of work in. I had all the resources I needed to prepare myself.
"My argument is MPs have a legitimate expectation their questions will be answered. As a Member of Parliament I need to keep myself informed.
"I am confident of success, but ready to appeal."