Not at the base layer, not at all. That's why commercial traffic is handled by secure encryption, and not an elaborate fabric of internationally-agreed-upon law

Not at the base layer, not at all. That's why commercial traffic is handled by secure encryption, and not an elaborate fabric of internationally-agreed-upon laws that will assign fair and standardized punishments to people for snooping each other's IP packets on an open wifi router without permission of the packet sender.