ment setting forth the nature of the Commission's inquiry and the purpose for which the witness has been asked to testify or produce evidence. A copy of this statement shall be given to each witness prior to his testifying.

6. A witness shall have the right to be accompanied by counsel, of his own choosing, who shall have the right to advise the witness of his rights under the laws and Constitution of the United States and to testimony, counsel shall have the right to clarify the testimony of the witness by questioning the witness.

7. Every witness who testifies at a hearing shall have the right to make an oral statement and to file a sworn statement which shall be made part of the transcript of such hearing, but such oral or written statement shall be relevant to the subject of the hearing.

8. Rulings on objections or other procedural questions shall be made by the presiding member of the Commission.

9. A stenographic verbatim transcript shall be made of all testimony received by the Commission. Copies of such transcript shall be available for inspection or purchase by the witness or his counsel at regularly prescribed rates from the official reporter. A witness or his counsel shall be permitted to purchase or inspect only the transcript of his testimony before the Commission.