Investigation Department - January 1951 to

Investigation Department - Index to Interim Reports 1951

Investigation Department - Index to Completed Cases 1951

Investigation Department - Watch List 1951

Investigation Department - Index Information Reports 1951

Administration - January 1951 to July 1951

Diet - 1 January 1951 to

Investigation Department - Cases

Weekly Investigation 1951

Investigation - April 1951

Investigation - May 31-1951

Investigations 15-31 January 1951

Kanto Monthly Activities Report January-April 1951

Shikoku Monthly Activities Report January-April 1951

Hokkaido Monthly Activities Report January-April 1951

Kyushu Monthly Activities Report January-April 1951

Chugoku Monthly Activities Report January-April 1951

Tohoku Monthly Activities Report January-April 1951

Tokai-Hokuriku Monthly Activities Report January-April 1951

Monthly Civil Affairs Activities Report, Annex E-2 January 1951 - June 1951 (Regions)

Monthly Civil Affairs Activities Report Annex B-2, January 1951 - March 1951 (Hokkaido)

Monthly Civil Affairs Activities Report Annex B-2, January 1951 - March 1951 (Chugoku)

Monthly Civil Affairs Activities Report Annex B-2, January 1951 - April 1951 (Shikoku)

Monthly Civil Affairs Activities Report Annex B-2, January 1951 - March 1951 (Tohoku)

Monthly Civil Affairs Activities Report Annex B-2, January 1951 - April 1951 (Kanto)