According to internal records, in 1988 - the last "normal" year of the GDR - the Ministry for State Security had more than 170,000 "unofficial collaborators." Of these, some 110,000 were regular informers, while the others were involved in "conspiratorial" services such as lending their flats for secret meetings or were simply listed as reliable contacts. The ministry itself had over 90,000 full-time employees, of whom less than 5,000 were in the HVA foreign intelligence wing. Setting the total figure against the adult population in the same year, this means that about one out of every fifty adult East Germans had a direct connection with the secret police.It was not unusual for people to be informed on by co-workers, neighbors, friends, lovers, spouses or children. The East Germans had quite a bit of work to do to reeducate its citizens about history, economics, law, and and the role of the state. Most of the adult population in 1989 had known only Soviet rule or, if they were old enough, the Nazis. So following the fall of the Berlin wall, Germany made the contents of STASI files available to anyone who had one, allowing them to know who informed on them, and what they believed was known about them. This effort at transparency often became an exercise in counter-recrimination. In some cases, mostly for higher-ups, justice was pursued legally. In others, the discovery of betrayal by friends and family was life-altering and devastating.
For Timothy Garton Ash, an Oxford student in the 1970s writing his thesis on Berlin under Hitler, it was an opportunity to think about the interaction of the political with the personal on two levels. On the one hand he sought to understand the impact of the state on these individuals - what motivated his informers (he's now a respected political journalist and author of many books on the revolutions of 1989 - here's a link to my thoughts on his The Magic Lantern ). On the other, he could examine his own experience as a young man present at a key event in history, considering how subjective memory informs the telling of history. As he puts it