The Equalities and Human Rights Commission (EHRC) has written to the Labour whistleblowers who gave evidence of antisemitism in the party, saying it may use this to question the leadership over Jew-hate.
It also said that they “may also refer to information provided” in its final report, once they have completed its investigation.
In the letter – originally published by Sunday Times journalist Gabriel Pogrund and dated January 6 – EHRC Senior Principal Stephen Lodge said: “We have identified a need to use some of the information you have shared with us for the purposes of our investigation.