Preemptive blame-shifting

Quote of the day from Jack of Kent:

And already the civil service (on whom the success of Brexit will depend) are being attacked for not implementing a policy which does not exist yet:

At last, an attempt at blame transfer even less convincing than the classic "the dog ate my homework." This is more like the Brexiteers claiming that they couldn't possibly start their homework, on account of the hungry way the dog kept looking at their exercise book.