Geneva: A Swiss parliamentary committee plans to hold its hearing on Tuesday with central bank Chief Philipp Hildebrand behind closed doors in a bid to answer open questions about the private currency deals he engaged in while simultaneously leading efforts to soften the Swiss franc.

Lawmakers on the Committees for Economic Affairs and Taxation told that tomorrow's hearing will be confidential but reporters will be briefed afterwards.

Philipp Mueller of the pro-business Free Democratic Party said on Monday he hopes holding the meeting in private will elicit better responses than if Hildebrand were to speak before cameras as is common in parliamentary hearings in the United States or Britain.

Hildebrand has denied breaking central bank rules.