such question. (B) Compelled testimony If such person refuses to answer any question on the grounds of the privilege against self-incrimination, the testimony of such person may be compelled in accordance with the provisions of part V of title 18, United States Code. (8) Witness fees and allowances Any person appearing for oral testimony under a civil investigative demand issued under subsection (a) shall be entitled to the same fees and allowances which are paid to witnesses in the district courts of the United States. (j) Custodians of documents, answers, and transcripts (1) Designation The Attorney General, or designee in accordance with this Act, shall designate an investigator to serve as custodian of documentary material, answers to interrogatories, and transcripts of oral testimony received under this section, and shall designate such additional investigators as the Attorney General determines from time to time to be necessary to serve as deputies of the custodian. (2) Responsibility for materials