“The disciplinary process of sports” defective “, as it begins a ban in six games against Northhampton on Friday.
Diamond, 56, was granted a comment to misuse the match officials at the end of the 17-15 defeat in Exter Chevs on March 29.
He was annoyed by the prize -winning Exter tried at the last minute and facing officials angrily after the match.
Diaond admitted the charge, describing the incident as a “big mistake”, but he says that the most experienced officials may be needed.
He said: “There is a problem with the disciplinary system, and it is not a problem with the rulers. There are only people like me ready to say things on this topic, but this is not the first time that these things occur.
“I got a six -week ban for saying an inappropriate comment – which I apologize for – for a professional judgment in complete privacy.
“If the reference is unable to receive it, because he cannot see everything and the assistant can definitely see everything, for the good of the TMO [television match official] You should see these things?
“The system is defective. They may need more investment and the most experienced people in doing these jobs.
“There is no accountability. We understand that we must have an organization and we understand that I cannot say what I said, but there must be some accountability, otherwise people continue to make mistakes.”