An effort by the New York Police Department to get broader latitude to eavesdrop on terrorism suspects has run into sharp resistance from the Justice Department in a bitter struggle that has left the police commissioner and the attorney general accusing each other of putting the public at risk.
  The Police Department, with the largest municipal counterterrorism operation in the country, wants the Justice Department and the Federal Bureau of Investigation to loosen their approach to the federal law that governs electronic surveillance. But federal officials have refused to relax the standards, and have said requests submitted by the department could actually jeopardize surveillance efforts by casting doubt on their legality.