From Powershare, Inc. v. Syntel, Inc., 597 F.3d 10 (1st Cir. 2010):
The Federal Magistrates Act confers authority upon district judges to designate magistrate judges to hear pretrial motions. 28 U.S.C. § 636(b)(1). Magistrate judges serve as aides to, and under the supervision of, district judges; but magistrate judges are not themselve ...
From Powershare, Inc. v. Syntel, Inc., 597 F.3d 10 (1st Cir. 2010):
The Federal Magistrates Act confers authority upon district judges to designate magistrate judges to hear pretrial motions. 28 U.S.C. § 636(b)(1). Magistrate judges serve as aides to, and…