Not in America
In what court would you bring a case against the United States under the GDPR?
I get your point, but practically most large companies have EU subsidiaries (and in many cases, structure their businesses to exploit the benefits of EU nations like Ireland) and thus must follow EU laws anyway.
> but the GDPR effects non-EU businesses and governments
specifically.
But, more importantly, the GDPR doesn't help if the data is needed for a criminal investigation. There are very clear exemptions to the GDPR protections, and this is one of them.
[1]: https://en.wikipedia.org/wiki/EU_illegal_State_aid_case_agai...