A new report published on Tuesday by antisemitism researcher David Collier has revealed cases where Ms Green either shared material from antisemitic websites or liked antisemitic posts.
Mr Collier discovered that Ms Green has shared material from antisemitic and Holocaust denial outlets including Veterans Today and The Ugly Truth, as well as content explicitly blaming Israel for 9/11, the 2015 Paris attacks, and ISIS.
One Facebook post she "liked" said: “The Jewish minority have far too much say in this country. They are pandered to and over represented in the corridors of power and their influence is dangerously close to treasonable.”
In another post, a person describes her pleasure at meeting Ms Green, before writing a poem about “The Jewish lobby”, which includes the words “unlike me... they’re bigoted and full of bile” and says “now is the hour to the rob these demons of their power.”
Ms Green responded: “Nice bit of doggerel… I really like that… well said.”
Ms Green opposed posts within the Palestine Live group that openly promoted Holocaust denial on the grounds they were not relevant to the group.
In one response, she said: “People should be allowed to discuss this without being silenced, but am slightly unsure whether it should be here.”
Another response from her read: “We don’t usually do all the Holocaust questioning stuff in here… there are other places for that… but not here. Is that ok?”
Jeremy Corbyn was a member of the Palestine Live group from 2014 to 2015, leaving after he was elected to lead Labour.
Mr Corbyn helped Ms Green organise at least one event in Parliament, and expressed regret that he could not attend another in Parliament she had organised.
There is no suggestion that Mr Corbyn himself published content in the group that could be deemed antisemitic.
A spokesperson for the Labour Against Antisemitism (LAAS) group called it a "disgrace" that Ms Green "hasn't yet been expelled".
They said that although Labour had announced it would investigate Mr Collier's evidence after his first report on Palestine Live came out in March 2018, "there was no contact with Mr Collier and it was only apparently after a further complaint was made again that Ms Green was finally suspended" in August 2018.
"The evidence of her alleged antisemitism surely cannot be questioned, so we wonder what possible grounds their could be for the delay in her case," the spokesperson said.
"We hope a forthcoming EHRC investigation will shine some light on what continues to appear to be institutional racism."
The JC put all of Mr Collier's findings to Ms Green.
Her emailed response did not address any of the specifics, saying: "I believe that all people of every race, creed and colour should have equal human rights and the chance to live their life to the full.
"That should include all Jews and all Muslims in all nations. I have believed that for some considerable time now and will continue speaking out about injustices that are being carried out and trying to change the world for the better.
"I hope that I will have the courage to never swerve from this path and that more and more people will come to feel this way. All the signs are that the numbers of those who wish for an end to injustice and strife are growing very fast now.
"I wish no harm to anyone at all. To no one. None. I respect all people who are of a mind with me on this and hope that one day soon it will no longer be acceptable to encourage any racial hatreds at all. No more inequality. No more violence and no more war – that day must come.
"Peace. Shalom."
