Conversation so far:
who was victim of imprisonment?
During his incarceration, at JVA Moabit corrections officers supplied Mielke with a red telephone.
when did mielke go into prison?
Before his arrest in 1989, the most feared man in East Germany had lived in a luxurious home.

Question: did he ever get out of his imprisionment for any reason?
Self-contained rewrite: did Erich Mielke ever get out of his imprisionment at JVA Moabit prison for any reason?