Why didn't she just self-identify as a strong male?

 Newly-approved test dummy for k-9 female candidates. weight, 12 oz

Newly-approved test dummy for k-9 female candidates. weight, 12 oz

Police K-9 candidate awarded £15,000 because her dog was too heavy to carry. 

A female police officer has been awarded £15,000 after failing a grueling fitness test to become a dog handler - and now the rules are changing.
Constable Kim-Louise Carter was up against a ten-mile run before she had to carry a dog over a course known as 'The Long Walk', in wet and muddy conditions.
She claimed that the test put women at a disadvantage because it was too physically tough to pass as she struggled to keep up with her male equivalents.
Miss Carter, 31 won a landmark sex-discrimination case proving that the system to become a dog handler was too demanding for some women.
Miss Carter told the tribunal that she became exhausted while carrying a dog that weighed 35kg, appropriately named Hulk, up a hill.
The female police constable, who began her policing career as a community support officer in 2005 before becoming a constable in 2013, said the test favoured men more than women.
The tribunal heard that out of 48 dog handles in the Gloucester force just four were women. While Avon and Somerset had three women out of 24 handlers and Whiltshire had four women out of 12 in total.
However the defence for the forces said that in order to succeed as a dog handler it is vital to be phyiscally fit as tracking criminals over long periods of time in debilitating conditions and then arresting the criminal was especially challenging.
The judge agreed women were at particular disadvantage compared with men and awarded Miss Carter a total of £14,930 for indirect sex discrimination.

The (new) "settled science" says that gender is something to be decided by the individual itself, so I don't understand why this claim wasn't dismissed on the court house steps. As it is, I'm sure those in need of police assistance will be relieved to know that, though rescue may not come, persons self-identifying as women-K9 handlers have secure jobs.