Question

In what ways did the nazi state seek to established total control over its people

Answer 1

Why would someone turn you in? Maybe because they were Nazi fanatics or maybe just because they disliked you. This made people distrust each other. An angry old man who complains about your family behaviour could be a querulant but if he turn you in? Once the Gestapo has got you in for interrogations you would face torture and death. Maybe the best option was a preemptive strike and turn the old man in. Anonymous of course. No one needs to know. Ops! You are suddenly also an informer.

Answer 2

Due to all the above reasons Nazi state seek to establish total control over Germany