12 C.F.R. § 263.456 – Rights of witnesses.

(a) Any witness in a formal investigative proceeding may be accompanied and advised by an attorney personally representing that witness.
1. (1) Such attorney must be a member in good standing of the bar of any state, Commonwealth, possession, territory, or the District of Columbia, who has not been suspended or debarred from practice before the Board in accordance with any provision of this part, including paragraph (a)(4) of this section.
2. (2) Such attorney may advise the witness before, during, and after the taking of the witness' testimony and may briefly question the witness, on the record, at the conclusion of the witness' testimony, for the sole purpose of clarifying any of the answers the witness has given. During the taking of the testimony of a witness, such attorney may make summary notes solely for the attorney's use in representing the witness. Neither the attorney nor witness may retain copies of exhibits used or introduced in the course of a witness' testimony.
3. (3) All witnesses must be sequestered, and, unless permitted in the discretion of the designated representative, no witness or accompanying attorney may be present during the taking of testimony of any other witness called in such formal investigative proceeding. Attorneys for any other interested persons or entities will not, unless permitted in the discretion of the designated representative, have a right to be present during the testimony of any witness not personally being represented by such attorneys.
4. (4) The Board, for good cause, may exclude a particular attorney from further participation in any formal investigative proceeding in which the Board has found the attorney to have engaged in dilatory, obstructionist, egregious, contemptuous, or contumacious conduct. The designated representative conducting the formal investigative proceeding may report to the Board instances of apparently dilatory, obstructionist, egregious, contemptuous, or contumacious conduct on the part of an attorney. After due notice to the attorney, the Board may take such action as the circumstances warrant, including suspending any attorney representing a witness from further participation in the investigative proceeding, based upon a written record evidencing the conduct of the attorney in the formal investigative proceeding or such other or additional written or oral presentation as the Board may permit or direct.
(b) A witness may inspect the transcript of the witness' own testimony, without retaining a copy thereof, for the purpose of making non-substantive corrections to the transcript at a time and place that the designated representative determines to be appropriate in consideration of all relevant factors, including the convenience of the witness.
(c) A witness may, solely for the use of the witness and the witness' attorney, obtain a copy of the transcript of the witness' testimony, provided that the witness submits a written request for the transcript and the witness requesting a copy of the witness' testimony bears the cost thereof. However, the Board officer supervising the formal investigative proceeding may deny such a request if, in the officer's discretion, the provision of the transcript may infringe the privacy of third persons involved in the investigation, or impede or interfere with the conduct of any investigation. If the Board issues a notice of charges or otherwise initiates an administrative (adjudicatory) hearing, disclosure of formal investigative transcripts obtained by the Board's designated representative(s) during the course of the formal investigative proceeding will be governed by the Uniform Rules and the Board Local Rules Supplementing the Uniform Rules (subparts A and B of this part).