All reports indicate that the French police arrested the climate activist fighting against gentrification.
However, ProtonMail is not under obligation to provide any details to the French authorities.
So how did they get the IP address details?

To get information about the activist, the French police sent a request to the Swiss authorities through Europol.
Proton must comply with Swiss law.
Andy Yen (@andyyen)September 5, 2021
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The firm couldve been under the legal obligation to not disclose these details.
Over the years, the countrys government has hadincreasing amount of data requestssent to the email service.
In 2020, it sent 3,572 such requests more than double of 1,465 requests it sent in 2019.
In response, Yen said that the company will promote this option more prominently.
you’re free to read about the whole incident in detail onTechCrunch.
That’s one heck of a mixed bag.
He likes to say “Bleh.
That’s one heck of a mixed bag.
He likes to say “Bleh.”