Post-War Reports :

The Goering Collection: Consolidated Interrogation Report (CIR) No. 2 15 September 1945

The full text of the report is available in two parts here and here.

The report is also available as digitised pages on www.footnote.com:
Publication Number: M1782
Publication Title: OSS Art Looting Investigation Unit Reports, 1945-46
Content Source: NARA
Content Partner: NARA
Source Publication Year: 2001
Footnote Publication Year: 2009
Record Group: RG 239
Footnote Job: 09-017