The Umbrella Corporation wrote:
Ignorance of the law is no excuse.
Presumably a Starship Captain, a representative of the Federation should know this.
Heck, even if nobody mentions it to Starship Captains in their training they really ought to figure it out quick enough: alien ritual combats are always
to the death. It must come as a shock when they find one that's just five rounds of three minutes boxing each and if either person bleeds that ends the match.