The text comes from a redacted and leaked report from the Jewish Labour Movement entitled Jewish Labour Movement Closing Submission to the EHRC - Antisemitism in the Labour Party. No information can be gleaned as to whether it is accurate or not as it is a allegation made by the JLM and not an actual conviction or statement of fact. Furthermore, the statement by Mr. Canning seems to claim that this alleged event is official policy of the Labour party, as opposed to discriminatory behavior by one member of the party.
The relevant portion can be found on page 9.
23.1 One respondent reports that the membership secretary in the South Tottenham constituency objected to 25 applications for membership from the ultra-orthodox Jewish community, and required home visits to these prospective members' houses. This was not a requirement for other prospective members and appears to have been direct discrimination against Jewish applicants for membership. (57)
The (57) refers to a footnote at the bottom of the page.
(57) JLMSUB1 Appendix 4 Part A Statement of [REDACTED]
There is no Appendix 4 in the leaked report.
The statement by Mr. Canning claiming
If you’re a Jew and want to become a Labour member in Tottenham constituency, you have to agree to a home visit
does not appear to be true. Even if the allegations above are true, it does not appear to be an official policy of the British Labour party, or even of the South Tottenham Labour Party, but instead a discriminatory act by a single member of the South Tottenham Labour Party.