Deputy Andrew Lewis faces a vote of censure in Jersey's States Chamber today.
It comes after he was found to have lied to the Assembly and to the Independent Care Inquiry over the suspension of a Police Chief in 2008.
Last month, the Privileges and Procedures Committee carried out its own investigation and concluded Deputy Lewis had also broken the Code of Conduct, which all States Members are expected to adhere to.
Two politicians have resigned from a committee, which Deputy Lewis is head, in response to the findings.
Constable Simon Crowcroft and Deputy Judy Martin left the Public Accounts Committee, stating they had "no confidence" in the Deputy.
Deputy Lewis has denied any wrongdoing and says the PPC report contains several flaws, including taking comments which he made in the Assembly and in the Care Inquiry out of context.