FYI email contents were not decrypted or turned over to police, as far as I know Proton's E2EE is still as good as whatever system you're using. Proton doesn't have the keys to decrypt your emails, it never did. What they have access to is metadata that is necessary to function when your private key is unavailable - e.g. your public encryption key used to encrypt incoming emails from non-Proton sources, or in this case, a recovery email address (I don't know what the recovery process entails and whether it can restore encrypted emails).