We?re talking about when those notes were written, not the time of the interrogation. What is your evidence that Fritz made those notes during the interrogation instead of days later like he said?
I reject the proposal that Fritz scribbled the notes at some later time....primarily because they are such a scrambled mess.....If he had sat down at a later time and at his leisure wrote the notes, I seriously doubt that they would be such a mess....
What you seriously doubt has no evidentiary value.