CA Penal Code Section 938

(a)

Whenever criminal causes are being investigated before the grand jury, it shall appoint a competent stenographic reporter. He shall be sworn and shall report in shorthand the testimony given in such causes and shall transcribe the shorthand in all cases where an indictment is returned or accusation presented.

(b)

At the request of the grand jury, the reporter shall also prepare transcripts of any testimony reported during any session of the immediately preceding grand jury.