But they say the 26-year-old New Zealand skipper could face disciplinary action if he is found guilty, following an incident at the weekend.
“It may well be that Benji can successfully defend the allegation and he is entitled to that opportunity.
“Both he and the Wests Tigers, though, need to be aware that the seriousness of this matter and the importance of the week will dictate the need for strong action if he is unsuccessful in defending the charge.”
The organisation say there are a number of other high-profile cases in which it has not intervened during court cases.
“The NRL will intervene where it believes the club has not acted appropriately and impose further sanction against the player or the club.”