The Clerk, upon request of the foreperson of the Grand Jury or of the attorney for the Commonwealth, shall issue subpoenas for witnesses. The attendance of witnesses may be coerced as in other judicial proceedings, unless, and until, excused, or modified, by the requesting party. RCr 7.02 shall apply to Grand Jury subpoenas except that a subpoena issued pursuant to this rule may command the person to whom it is directed to produce the books, papers, documents or other objects designated therein to the foreperson of the Grand Jury or the Commonwealth's Attorney or his/her agent, without requiring the personal appearance of the witness before the Grand Jury.