PowerShares DB Multi-Sector Commodity Trust POS AM Prospectus update (post-effective amendment)

Exhibit 23.3

CONSENT OF TAX COUNSEL

We hereby consent to the filing of our opinion as Exhibit 8.1 to this Post-Effective Amendment No. 1 to the Registration Statement on Form S-1 and to all references to our Firm included or made a part of this Post-Effective Amendment No. 1 to the Registration Statement. In addition, we hereby consent to the discussion of our opinion in the Prospectus constituting part of this Registration Statement under the caption “Material U.S. Federal Income Tax Considerations.”

New York, New York	/s/ Sidley Austin LLP
April 15, 2009