see the current EU draft which consists of some hundred pages of forbidding this or that under the guise of ethics and whatnot, after which comes a paragraph of "the above doesn't apply to law enforcement or military entities"

That's not true though, is it? The section called 'TITLE II - PROHIBITED ARTIFICIAL INTELLIGENCE PRACTICES' is two pages long (https://www.europarl.europa.eu/RegData/docs_autres_instituti... page 44), and usage by law enforcement is under the condition that a judicial authority has to grant an exemption on an individual basis.