Duties of Magistrate Judges.

In criminal cases, each magistrate judge shall exercise all the powers conferred or imposed by law and the Federal Rules of Criminal Procedure and may: (a) exercise general supervision of criminal calendars when requested by a district judge; (b) conduct arraignments, enter not guilty pleas, and schedule trial dates; (c) receive grand jury returns in accordance with Fed. R. Crim. P. 6(f); (d) conduct preliminary hearings, removal and necessary procedures leading to potential revocation of probation; (e) preside over misdemeanor cases in accordance with these rules; (f) issue subpoenas, writs of habeas corpus ad testificandum or ad prosequendum or other orders necessary to obtain the presence of parties, witnesses, or evidence needed for court proceedings, or to 33 obtain services sought by indigent defendants under the Criminal Justice Act, 18 U.S.C. § 3006A; (g) order the exoneration or forfeiture of bonds; (h) perform all functions specified in 18 U.S.C. §§ 4107, 4108, and 4109 regarding prisoner transfers; (i) (j) hear motions and enter non-dispositive orders relative to mental competency under 18 U.S.C. § 4241 et seq.; conduct all initial bail and detention proceedings pursuant to 18 U.S.C. § 3142 et seq.; (k) conduct hearings on discovery motions and, when designated by the district judge, conduct hearings on any other pretrial motions; (l) accept waivers of indictment, pursuant to Fed. R. Crim. P. 7(b); (m) conduct change of plea proceedings when consented to by the parties; and (n) perform any additional duty consistent with these rules and the Constitution and laws of the United States.