As the flow of refugees from the GDR increased, often by several thousand people a day, the then government of the GDR felt compelled, with the consent of the Soviet Union, to confine its population, otherwise within a few years there would be so few people left in the state no longer really would work. The flight to the West among young people, skilled and highly educated was so that the situation was unsustainable and something had to be done.  
The GDR had otherwise promised its population that after some hard years of toil and toil, the reward would come, but when you could see, not least via western TV, how the nation actually fell further and further behind in relation to the west, many began to doubt truth value of the statement. For the same reason, large parts of the population began to seep to the west and this could most easily happen via Berlin, where the borders between the various sectors were still open.

When a GDR citizen had decided to become a "republican refugee", he or she typically dressed like people from the West and then subsequently bought a train ticket to Berlin , if one did not already live there. In Berlin, the trip typically continued by "U-bahn" to West Berlin. During such an escape, no significant luggage could be included, as one would easily be recognized as what one was - a refugee - and then taken to the police station for questioning and imprisonment. Although there was free passage to West Berlin, many East German border guards were posted at the border and were largely solely responsible for keeping an eye on any refugees.