(a) The Administrative Law Judge will inquire fully into the facts as to whether the Respondent has engaged in or is engaging in an unfair labor practice affecting commerce as set forth in the complaint or amended complaint. The Administrative Law Judge has authority, with respect to cases assigned to the Judge, between the time the Judge is designated and transfer of the case to the Board, subject to the Rules and Regulations of the Board and within its powers, to: (1) Administer oaths and affirmations