The ICTY website (source of the image) Terms and Conditions of Use (http://www.icty.org/sid/180) specify that "...Materials available on the Site may be reproduced provided the source is acknowledged, and provided the Materials are not distorted." while cautioning that "Users should be aware that certain Materials available on the Site may be copyright protected." The source of the particular image provides no indication that the image is copyrighted and I therefore think it falls under the following copyright tag:

	Der Urheber gestattet jedermann jede Form der Nutzung, unter der Bedingung der angemessenen Nennung seiner Urheberschaft. Weiterverbreitung, Bearbeitung und kommerzielle Nutzung sind gestattet.
	Attribution