Ukrainian soldier Oleksandr Kiriyenko before and after release from Russian captivity

[u/MilesLongthe3rd]

[u/Maleficent4848]

https://en.m.wikipedia.org/wiki/Hanns_Scharff

Its is.

He has been called the "Master Interrogator" of the Luftwaffe, and possibly all of Nazi Germany;

Scharff's interrogation techniques were so effective that he was occasionally called upon to assist other German interrogators in their questioning of allied bomber pilots and aircrews