TTR, although there are no legal height requirements to become a police officer in the UK, most forces won't even look at you if you're male and under 5 foot 7 or female and under 5 foot 4. I presume your 4 foot 11 comment is a colloquialism.

Khalifa. From what I've read, and it's possible I haven't seen all relevant facts, it appears that she was born with a vagina, a uterus, a womb, has periods and can have children. She is female, not trans, fully transitioned or simply self identified. She's not even Hermaphrodite, an issue that saw Caster Semanya barred from running 400m, 800m and 1500m unless she underwent hormione treatment. It seems that the only time there has been any doubt was when the IBA, halfway through a tournament, decided she had too much testosterone in her body to meet their criteria for what constitutes a woman. The IBA is not a body the IOC recognises which is why she has been allowed to take part in the Olympics. One Irish boxer is on record as saying that she and 8 others have beaten Khalifa in the ring so she's certainly not all conquering.

If you can find any reliable sources that conclusively prove she ever had "dangly bits" I'd love to see them.