Australian Police is infinitely less misleading and more accurate than simply saying 'police'. I have to assume all of these downvotes I've received are from Australians or other foreigners making some kind of anti-American point. The fact remains - this is a US owned website and a topic about a US company. Saying 'Police' gives the impression it is American police - when it isn't.
HN has an international audience. Assuming that $THING defaults to $US_VERSION_OF_THING is suboptimal. It's silly to do it here, it's silly to do it with dates; it's silly to do it with anything.
If you'd said that explicit declaration of nationality is better because it makes things clearer and easier to grok then you'd have got upvotes. But because you assumed US police and attacked the title as link baity you got downvotes.
On the contrary, "Police" NOS no more means "American Police" than ".com" means "US commercial website". Similarly, from an international perspective, Apple is an Irish company. If you don't believe me, ask your local tax authority.
I'm aware of the 80 char limit on subject lines, and I realise that sometimes information is left out.
Your suggestion is 28 characters more than "Police ".