[wruza]

IP address is too weak point of such failure. Your wifi password can leak or be guessed, and wired connection can have mitm so easily. Trojans may operate as exit nodes of some dark network. IP should not be used as identity in any way even in investigation process (not to mention courts). IP doesn't identify you, it simply leads to your connection point.

In practice though, these clinical cretins can throw you into russian jail for two months without taking counter-evidence into account. Just because.