; and (ii) any data or other digital files contained in, or attached to, the communication. (3) User, subscriber, or customer submitted reports In the case of a report under subsection (b)(3), the provider may, at its sole discretion, include in the report information submitted to the provider by a user, subscriber, or customer alleging facts or circumstances described in subsection (b)(2) if the provider, upon review, has a reasonable belief that the alleged facts or circumstances exist. (d) Handling of reports Upon receipt of a report submitted under subsection (b), the Drug Enforcement Administration— (1) shall conduct a preliminary review of such report; and (2) after completing the preliminary review, shall— (A) conduct further investigation of the report, which may include making the report available to other Federal, State, or local law enforcement agencies involved in the investigation of crimes described in subsection (b)(2), if the Drug Enforcement Administration determines that the report facially contains sufficient information to warrant and permit further investigation; or (B) conclude that no further investigative steps are warranted or possible, or that insufficient evidence exists to make a determination, and close the report. (e) Attorney general responsibilities (1) In general The Attorney General shall enforce this section. (2) Designation of federal agencies The Attorney General may designate a Federal law enforcement agency or agencies to which the Drug Enforcement Administration may forward a report under subsection (d). (3) Data minimization requirements The Attorney General shall take reasonable measures to— (A) limit the storage of a report submitted under subsection (b) and its contents to the amount that is necessary to carry out the investigation of crimes described in subsection (b)(2)