Comment by gambiting

>>To involve law enforcement she would have to travel to a country where she doesn't speak the language, to make an accusation for which she has no evidence but her word, against a man who lives in another city.

Well, that's not strictly true. At least the official advice in the UK is that even if the crime happened elsewhere you should still report it locally, then the case should be forwarded to the authorities in the country where it allegedly happened.

https://www.helpforvictims.co.uk/content/Q1.htm#:~:text=You%....

No idea how/if that would work in US, but in general you should be able to report it locally.