Holder in NY to prepare for terror trials

U.S. Attorney General Eric Holder arrived in New York City today to meet with federal prosecutors, the New York City police commissioner and other key officials to prepare for the upcoming Sept. 11 terror trials, ABC News has learned.

A grand jury is already hearing evidence against 9/11 mastermind Khalid Sheikh Mohammed.

Following the issuance of an indictment, which is widely expected, and the arrival of the suspects, including 911 mastermind Khalid Sheikh Mohammed a timetable for the trials would be set.

When the suspects will arrive remains uncertain. The Justice Department has to notify Congress 45 days in advance before moving the suspects from the Guantanamo Bay prison in Cuba to the U.S. Congressional sources said notification has not yet happened, so the 45 day clock has not yet started ticking.

ABC News has also learned that the New York City Police Department, working with the FBI, U.S. marshals and intelligence agencies assisting, is preparing a detailed security package for the next three years. That security package is believed to be one of the elements Holder is in New York to discuss.