The reason why all trans people use the special helpline is not because it hides criminal convictions, its that it hides their sex.
If they don't go through the helpline, there's a risk previous, or legal names are disclosed to anyone who sees the dbs. The dbs ensures that none but the name the recipient wants is disclosed. And they dont have to have a GRC to have access to this service.
So a government department has said that this person is called x and has no criminal record. Not only are they hiding legal or previous names from employers, they are hiding the sex or legitimising the idea that they are the opposite sex.
If the dbs holder is obviously male, and the employer understand the law clearly, they can treate the person as their real sex.
But we know the law is confusing, so they might just as easily assume they have a GRC or think they have to treat them as the opposite sex because the government sees them as the opposite sex.
Its worse if they do pass, or pass enough for people to be unsure. Then they may be given access to situations that they shouldn't.
Let's never lose sight of the fact that the trans lobby wanted trans adults to have exceptions to the standard DBS process so that they are not exposed to the same scrutiny that every other adult has to undergo.
This. If trans is acceptable, why is the fact that trans people have had different names so outrageous. Why would knowing someones previous names be so damaging that a helpline needs to be set up?