Abstract: Video monitoring installations ensure protection for people at railway stations, airports or in public spaces. Use of the recorded video data allows immediate or subsequent tracking of criminal acts to be implemented or at least supported. A monitoring installation 1 having at least one monitoring camera 4 for recording a monitoring image is proposed, wherein the monitoring image shows a monitored area 5 in surroundings 3, having a second camera 9, 16 for recording a control image 8, wherein the control image 8 shows a control area 13 in the same surroundings 3, wherein the monitored area 5 and the control area 13 at least partially overlap in an overlap area 14, having a portable data processing device 6, wherein the data processing device 6 has a display module 7, wherein the data processing device 6 is designed to display the control image 8 on the display module 7 with an identification 10 for the monitored area 5.