Deputy Andrew Lewis has been censured by the States, after breaking the Assembly's code of conduct.
It follows accusations he had lied to the States while he was Home Affairs Minister in 2008, and later to the Jersey Care Inquiry.
Deputy Andrew Lewis (of St Helier) has resigned as Chairman of the Public Accounts Committee, after a vote of censure was passed in the States.
Twenty-nine members voted in favour of the vote of censure after the Independent Jersey Care Inquiry said Deputy Lewis had lied to the inquiry and to the States over comments regarding the suspension of a Police Chief in 2008.
He said he "emphatically denies" the allegations, but accepted the comments were "less than ideal".
The latest development follows the resignation of two Jersey politicians from the same committee, who said they 'no longer have confidence' in Deputy Lewis.
Constable Simon Crowcroft and Deputy Judy Martin gave notice of their resignation from the Public Accounts Committee to the Bailiff last month.
Deputy Lewis has formerly written to the Bailiff offering his resignation from the Public Accounts Committee.
States Members tell us how they feel about the vote of censure taking place in Jersey's States Chamber later against Deputy Andrew Lewis.
Deputy Andrew Lewis said he "emphatically denies" allegations he lied to the Independent Jersey Care Inquiry and to the States Assembly.
Deputy Andrew Lewis has criticised a report by the Privileges and Procedures Committee, which found he broke the States Code of Conduct.