Section 325 - Stenographers' duties1. It shall be lawful for any stenographer duly appointed and qualified as hereinbefore provided, to attend and be present at the session of every grand jury impaneled in the county in which he is appointed, and it shall be his duty to take in shorthand or upon a typewriting machine the testimony introduced before such grand juries, and, except when his original notes and minutes and the exhibits pertaining thereto have been impounded as hereinafter provided for, to furnish to the district attorney of such county a full copy of all such testimony as such district attorney shall require, but he shall not permit any other person to take a copy of the same, nor of any portion thereof, nor to read the same, or any portion thereof, except upon the written order of the court duly made after hearing the said district attorney provided, however, that the judge presiding over the term of court for which any grand jury is drawn, may at any time during the sitting of such grand jury and upon petition signed by its foreman or acting foreman and certified by its clerk to have been authorized by twelve or more of the grand jurors constituting such grand jury, impound the stenographer's original notes and minutes and the exhibits pertaining thereto, or any portion of such original notes, minutes, and exhibits, and may order them to be delivered to him and placed in his custody or in the custody of a public officer named by him. When so impounded, such original notes, minutes, and exhibits shall not be taken from the custody of such judge or such public officer except upon the order of such judge, who, upon the written requisition of the foreman or acting foreman of such grand jury, shall deliver them or order them to be delivered to such foreman or acting foreman for use in the grand jury room during the hours when the grand jury is actually in session. Except as above provided, all of the said original notes and minutes shall be kept in custody of said district attorney, and neither the same, nor a copy of the same, or any portion of the same, shall be taken from the office of said district attorney, excepting as above provided. Nothing contained in this section, however, shall be construed to prohibit a grand jury from inspecting its own minutes and exhibits while in session.2. Where an application follows a demand to produce any transcript of testimony at a grand jury proceeding pursuant to paragraph (b) of subdivision two of section 331.2 or paragraph (a) of subdivision one of section 331.4 of the family court act the presentment agency and respondent shall be given notice of such application and an opportunity to be heard.