Charlie - I do agree! I was just probing theotherPamAyres' suggestion that someone's trans status was always relevant when reporting a crime.
I agree that it always is when reporting a violent crime, sexual assault (especially rape), grooming, fraud etc. Ie serious public safety crimes, where it's important for society to know who has committed these so that they can take steps to keep themselves safe.
I was trying to think of a crime where physical size and strength doesn't matter, and where there isn't the same public interest in knowing who the individual is. If someone is charged with failing to stop at the scene of a collision (a criminal offence), I'm not sure what the public interest is in knowing that they are (or are not) trans.
As I say, thinking out loud