July 1962
"In the month of July, the situation on the sector and zone border has become no less tense either. The fact that the number of incidents at the border caused by border police has fallen is probably not the result of new orders and more humane behaviour, but solely of the unabated work on reinforcing the border barriers and the thus ever dwindling possibilities of escape," the West Berlin police write in their monthly report on developments at the sector and zone border.
Report by the West Berlin police on the situation on the sector and zone border as well as suburban and East German Reichsbahn (Reich Railway) premises for the month of July 1962 (in German)