(a) The Attorney General may at any time request relevant information from governmental jurisdictions and from interested groups and individuals and may conduct any investigation or other inquiry that is deemed appropriate in making a determination.

(b) If a submission does not contain evidence of adequate notice to the public, and the Attorney General believes that such notice is essential to a determination, steps will be taken by the Attorney General to provide public notice sufficient to invite interested or affected persons to provide evidence as to the presence or absence of a discriminatory purpose or effect. The submitting authority shall be advised when any such steps are taken.