A federal judge put off until Friday a bail hearing for reputed mob don John Gotti to consider whether to close the proceeding because of potentially provocative electronic tapes.

U.S. District Court Judge I. Leo Glasser said Monday he had to weigh constitutional questions about the secret tapes, which the government has gathered since September 1989 and intends to use to argue that Gotti and two co-defendants should be kept in jail until their racketeering trial.Gotti, Frank Locascio and Salvatore Gravano will be held in the Metropolitan Correctional Center until that 10:30 a.m. hearing Friday.

Glasser also left open the possibility that media representatives could argue to keep the hearing open.