Fletcher's comments come after his side lost to Wasps

Falcons' Jason Oakes earned a one-game ban for being sin-binned but Wasps' Simon Shaw and Raphael Ibanez escaped any action for punching and stamping.

"I'm bemused by the double standards of the system," said Fletcher.

The RFU denied Fletcher's claim saying it had "a robust disciplinary process applied equally to all players."

It's one rule for one and one for another John Fletcher

The two incidents which angered Fletcher were a stamp by Ibanez on Matt Burke, and a punch by Shaw on Oakes.

"Ibanez's stamp on Matt was as bad as Jason's and was brushed aside with the equivalent of a yellow card after the match," said Fletcher.

"The replay clearly shows Shaw illegally lifting Jason in a maul, then punching him in the head," he said.

"The referee on the day only awarded a penalty when it was clearly a sin-binning, and after the game the citing commissioner has only given him a retrospective yellow card.

"They haven't suffered being reduced to 14 men during the game and their player hasn't had to serve any suspension.

"The message that sends is that it's okay to go around a rugby field punching people in the back of the head.

"Of course it couldn't have anything to do with the fact that Shaw is most likely going to be involved with England during the autumn Tests. It's one rule for one and one for another."

In response to Fletcher's comments, the RFU issued a statement denying there were any double standards at work and clarifying its position on Oakes' citing.

"The independent citing officer reviewed the video of the match and decided that, in his opinion, the alleged stamp on Lawrence Dallaglio by Oakes merited a red card and therefore he should be summoned to appear before a disciplinary hearing," it said.

"No other actions of foul play were deemed to have satisfied the 'Red Card Test' but Simon Shaw received a Level 1 citing - the equivalent of a yellow card - for punching."