Jim,
they(NEC) took the problem seriously, they examined it and fornfd no serious problem

NO.
They were quite clear that there was a serious issue with antisemitism within Labour.
"The NEC are appalled by recent cases of anti-Semitic abuse."

Which bit of that do you not understand Jim?

"Baroness Jan Royall, who has conducted two recent investigations into specific allegations of anti-Semitism,"

"Chakrabarti, who will be chairing a wider ranging inquiry looking at anti-Semitism within the Labour Party. "

"anti-semitism within the Labour Party. The entire NEC recognises the seriousness of this issue."
http://labourlist.org/2016/05/alice-perrys-nec-report-corbyn-fighting-prejudice-and-listening-to-voters-online/

Get it Jim?
The seriousness of anti-Semitism within the Labour Party is recognised by the entire NEC!
When will you recognise it?
You do not need numbers or names!