JMIC thesis from Aug 02, with discovery credit given to a contributor to INTELST:

The History of MIS-Y: US Strategic Interrogation During World War II
...Using recently declassified material from the National Archives and Record Administration, this thesis seeks to capture the essence of the strategic interrogation program conducted under the auspices of the War Department’s Military Intelligence Service (code-named MIS-Y) with the mission of bringing selected German POWs from the European Theater of Operations to the U.S. for the purpose of gathering vital intelligence in support of the Allied war effort. This study examines the key elements of MIS-Y, to include the events that led to its founding; the program’s organization and facilities; the training it provided for its interrogation and operational support personnel; its methods for screening and selecting high value POWs; its process for interrogation and exploitation of captured documents; the Allied intelligence requirements that drove its operations; and the nature of the intelligence it produced and disseminated.

A primary objective of this thesis is to add to the Intelligence Community’s body of knowledge about the challenges and opportunities inherent in the strategic interrogation of POWs. It will also search this event in contemporary military history for timeless principles in the conduct of strategic level interrogation operations—principles that would guide a more effective intelligence program in support of future military operations....
Complete 162 page paper at the link.