

Afaik the Olympics test hormone levels and use that. Edit: Oh wow they started doing genetic testing again.
Genes are a not reliable test because among the athletic population, 7 per 1,000 women have male genes.
There’s a fantastic article written by Dr Jordan Feigenbaum here which covers the history of methods used and cites scientific studies on the topic.


Trump’s son Eric is building a 1.5 billion dollar golf course there.