; and (B) by adding at the end the following new clause: (iii) Upon the written request of an Inspector General with primary jurisdiction over a matter with respect to the contingency operation, and with the approval of the lead Inspector General, an Inspector General specified in subsection (c) may provide investigative support or may conduct an independent investigation of an allegation of criminal activity by United States personnel, contractors, subcontractors, grantees, or vendors within the theater of operations that relates to the matter. If the lead Inspector General determines that no Inspector General has primary jurisdiction over the matter, the lead Inspector General may conduct an independent investigation or may request that another Inspector General specified in subsection (c) conduct an independent investigation.