"If it is about excluded from a single sex service (sc3 para27) then "the because of" is sex, because they excluded for not a particular sex. So the comparator would be someone of opposite sex (which will differ depending on whether they had a GRC).
The added complication is that the policy may also be to exclude trans people even with a GRC as well (which is allowable under sch3 para28). Obviously any decision to use the single sex exception or the GR exception needs to be objectively justified"
Ann argued that in court. The judge was flatly clear in his response. That interpretation of the equality act is wrong in law.
"So if a TM, a female without a GRC but with the protected characteristic of gender reassignment, is discriminated against by a woman only service designed for females, then yes, it seems obvious "the comparator would be another woman without the protected characteristic of gender reassignment, with the claimant alleging discrimination against them because they have the protected characteristic of gender reassignment."
So, for example, a TM without a GRC fleeing from violence and wanting to access a Women's single-sex refuge should not be discriminated against based on their gender reassignment, as their comparator is other females without the protected characteristic of gender reassignment.
But on what grounds could a TW, a male without a GRC but with the protected characteristic of gender reassignment claim to be discriminated against, if they were attempting to access a service designed for females only? On what legal basis would their comparator not be another male? Bobbins indeed."
Again, from the judge in Ann's case; "However, it is in my view clear that Parliament has chosen to place transsexual persons in a different position to those of their "birth sex.""
And as the law only recognises two sexes that, by definition, means that any person with the protected characteristic of gender reassignment is not to be considered "of their birth sex" for the purposes of accessing single or separate sex services, or in other words, trans women aren't male when accessing single sex services. Or at least according to the ruling.