Former New York City Police Commissioner Bernard Kerik had his bail revoked Tuesday and was sent back to jail for allegedly trying to influence prospective jurors.

Kerik withdrew his nomination to become the head of the Department of Homeland Security after admitting he had not paid taxes for a nanny who was apparently not a legal immigrant.

In addition, he was reportedly charged with accepting apartment renovations from a construction company in exchange for recommending the company for city contacts. He has pleaded not guilty to those charges.

Judge Stephen Robinson said he revoked the $500,000 bail because Kerik reportedly disclosed sealed case information to the trustee of his legal defense fund on his website.

"My fear is that he has a toxic combination of self-minded focus and arrogance, and I fear that combination leads him to believe that his ends justify his means," Robinson said. "The failure of Mr. Kerik to abide by the direct order of this court ... must be appropriately addressed."

Kerick's lawyer said he would appeal the ruling, but said he was unsure if that could be done before the trial, which is slated to begin Monday

Kerik gained national notoriety during Sept. 11 when terrorists launched an attack in Manhattan on the World Trade Center tower. He and former-Mayor Rudolph Giuliani received stellar reviews for their leadership in the tragic incident.