As an attorney, insurance policies do not cover intentional acts.
In effect, this means that any intentional violence initiated by the organizers, even if simply an instruction, results in the organizing company and the organizers themselves personally liable for the acts.
In addition, the beating of an industry employee or executive in front of his peers adds additional liability in a case. This is due to the result of the individual's altered perception in the industry and his/her ability to conduct business in future. This liability alone is commonly assessed to the tune of a minimum of 100,000 GBP.
I don't know who the CAP's legal counsel is, but they are best to listen to them now.
I do hope the young Mr. Corfman is well, but he should consider legal counsel.
As an attorney, insurance