I'm sure they did. They were pretty thorough in working to discover exactly what happened in the bunker, and everyone was thoroughly interrogated, down to Hitler's dentist. Apparently they went to the extent of making everyone reenact what happened.
—everyone was thoroughly interrogated, down to Hitler’s dentist.—
The dentist was needed for the obvious reasons—matching bridgework records to all the dead heads in the Reichskanzler courtyard.