kinda missed the point somewhat
if the article was sarcastic, then I didn't see it.
if the article was serious, then you've just missed the point entirely...
the haulier is not a part of the subcontracted chain, it's a branch. and wouldn't be held liable, neither would BP, and only an idiot would think otherwise.
1, farmer employs cheap illegal work force. and thus enjoys the benefits of being able to grow cheap produce, that's still making him a large enough profit.
2, whole seller buys extraordinarily cheap produce. (and should know it's cheap for a reason)
3, Tesco buys really cheap produce, and likewise should question just why it's so cheap.
the guy who sells the seeds to the farmer in the first place can't be responsible, they are a part of the chain if events, but not a complicit part, and not really directly responsible.
neither is the guy who makes the tractor, tyres or fuel for the farmer/haulier.
and the haulier transports goods from a-b, they aren't responsible for the illegal labour or directly profiting from the results of that...
the point is clearly that those who get something extraordinarily cheap and don't stop to question how or why this is are the ones funding and supporting this, and if that means that Tesco should pay better attention to their chain of supply then so be it, and if joe from down the road with his tomato shop also needs to pay better attention to his chain of supply then also, so be it.
It amazes me that we can trace from field to shelf produce that is grown organically, you can be told exactly who or what has touched it, if you buy meat in Tesco from their finest range there is often a little picture of the farmer that actually reared the life stock.
it's not that the chain of supply can't be traced, because it can, and already is. and if there are people in that chain who are selling something that takes an hour to produce for less than the hourly rate of wage, then it's obvious that something strange is going on somewhere. and people should ask questions.
by you logic you should be arrested for funding terrorism. (you go to the cinema pay for film, money filters through to pay actor wages, who buy drugs, originally provided by the Taliban).