This is probably one of the cons of using VPN. If criminal used VPN service that you happen to use and connect to the same node, expect police to read your emails, courtesy of Google.

I'm still in the process of getting off google mail and switching to Proton. It takes time to go thru all my google emails and clean them up. Yes I know deleting them won't change a thing BUT at least I consent to deleting them on my end, versus merely abandoning my mailbox altogether.

I know Google has capacity to keep all emails forever, but whether they do so or delete them after X amount of years, I don't know.