Cocaine was seem as a "black" drug, marijuana was "Latino", and opium was "Chinese".
My country is almost completely white. Usually the people with darkest skin around here are Jews (more common) or Muslims (less common). There are a few black people living here, but they are probably less than 1%. If I see a black person I usually think he's a tourist or on a business trip.
So what would be good evidence that at least one machine on a particular ISP subscriber's home network was connected to a swarm?
Well, somebody could produce a torrent app that signs the records and is verified to produce correct records. It that gets the app certified for evidence gathering, the police could use it to, well, gather evidence. It is usually assumed that a police officer would not intentionally alter the records.
If not, what is someone stuck at a red light for half an hour supposed to do?
I do not recall a rule that a red light can be ignored after x minutes, though I suppose it could be used as defense provided the light was actually broken (there should be repair records).