A preliminary investigation conducted under this chapter shall be of such matters as the Attorney General considers appropriate in order to make a determination, under subsection (b) or (c), on whether further investigation is warranted, with respect to each potential violation, or allegation of a violation, of criminal law. The Attorney General shall make such determination not later than 90 days after the preliminary investigation is commenced, except that, in the case of a preliminary investigation commenced after a congressional request under subsection (g), the Attorney General shall make such determination not later than 90 days after the request is received. The Attorney General shall promptly notify the division of the court specified in section 593(a) of the commencement of such preliminary investigation and the date of such commencement.

The Attorney General may apply to the division of the court for a single extension, for a period of not more than 60 days, of the 90-day period referred to in paragraph (1). The division of the court may, upon a showing of good cause, grant such extension.

If the Attorney General, upon completion of a preliminary investigation under this chapter, determines that there are no reasonable grounds to believe that further investigation is warranted, the Attorney General shall promptly so notify the division of the court, and the division of the court shall have no power to appoint an independent counsel with respect to the matters involved.

Such notification shall contain a summary of the information received and a summary of the results of the preliminary investigation.

The Committee on the Judiciary of either House of the Congress, or a majority of majority party members or a majority of all nonmajority party members of either such committee, may request in writing that the Attorney General apply for the appointment of an independent counsel.

Not later than 30 days after the receipt of a request under paragraph (1), the Attorney General shall submit, to the committee making the request, or to the committee on which the persons making the request serve, a report on whether the Attorney General has begun or will begin a preliminary investigation under this chapter of the matters with respect to which the request is made, in accordance with subsection (a) or (c) of section 591, as the case may be. The report shall set forth the reasons for the Attorney General’s decision regarding such preliminary investigation as it relates to each of the matters with respect to which the congressional request is made. If there is such a preliminary investigation, the report shall include the date on which the preliminary investigation began or will begin.

At the same time as any notification, application, or any other document, material, or memorandum is supplied to the division of the court pursuant to this section with respect to a preliminary investigation of any matter with respect to which a request is made under paragraph (1), such notification, application, or other document, material, or memorandum shall be supplied to the committee making the request, or to the committee on which the persons making the request serve. If no application for the appointment of an independent counsel is made to the division of the court under this section pursuant to such a preliminary investigation, the Attorney General shall submit a report to that committee stating the reasons why such application was not made, addressing each matter with respect to which the congressional request was made.

Any report, notification, application, or other document, material, or memorandum supplied to a committee under this subsection shall not be revealed to any third party, except that the committee may, either on its own initiative or upon the request of the Attorney General, make public such portion or portions of such report, notification, application, document, material, or memorandum as will not in the committee’s judgment prejudice the rights of any individual.