Location data for sale... "FCC can't punish us!"

[Quantum12]

Location data is one of the things that are considered "personal data" under the GDPR, because it allows the identification of the data subject and the GDPR applies to "identifiable natural persons".

The US has legal ties with the EU that extend the EU's GDPR to the US, so any EU citizen is protected by the GDPR also under US law, so if an EU citizen finds their data being used without their consent they can make an official complaint.

But the problem here is the consent, as most people accept any request they see on a web page or phone app without reading them, so they cannot complain about the consequences of their own actions or inactions.

So let’s say Jeff a serial killer goes to his victims house and hacks up his victim. He brings his phone with him in case of an emergency.

He gets arrested for reckless driving. They find a body part in his pocket.

Can the police legally use his phones data to track where he was in the past?