Not exactly New York's finest these days. Bernard Kerik, the former NYPD commissioner, was jailed Tuesday after a judge revoked his bail. The judge said that Kerik, facing trial for trading services for personal favors, passed on confidential documents to a "sham" lawyer, who then compromised jury selection by giving the documents to newspapers and blogs. "I have a serious concern and believe there is a probable cause to believe that Mr. Kerik, given his own devices, will deliberately obstruct justice in this matter," the judge said, adding, "My fear, however, is that he has a toxic combination of self-minded focus and arrogance. And I fear that that confidence leads him to believe that the ends justify the means, that the rules that apply to all don't necessarily apply to him in the same way."