Scenes from the All Nations Cup arab horse show at Aachen, 2011. The man in the straw hat who interposes himself between a horse and a handler is Sven Svensson, the ring master during the class.
This show was organised under the auspices of the European Conference of Arab Horse Organizations, whose regulations on showing include the following prohibitions:
33. Excessive whipping or shanking [jerking violently at the horse’s mouth], excessive stimulation by noise or intimidation, excessive circling
of the horse, use of electric shock devices or infliction of pain by any means is forbidden in all parts of the showground or stable areas, at all times.
34. The above offences are punishable by issue of a Yellow/Red card”
The ECAHO website contact page is here. Thank you to HHO for drawing attention to this. Apparently some form of hearing is now underway.
EDITED TO ADD: very interesting response here from the ECAHO!