Source: p 28, Criminal Law: The Basics, 1 ed (2009), by Herring
The Woollin direction allows the jury to find intention if they wish, if the foresight of virtual certainty test is satisfied. But what factors are the jury meant to take into account in deciding whether or not to find intention? We are not told by the House of Lords.
[The test:] “Where the charge is murder and in the rare cases where the simple direction is not enough, the jury should be directed that they are not entitled to find the necessary intention, unless they feel sure that death or serious bodily harm was a virtual certainty (barring some unforeseen intervention) as a result of the defendant's actions and that the defendant appreciated that such was the case.”
In general, if someone must apply a test, then she will be presented with the elements of that test. Given the requirements and the facts, she can then test directly. So what does foresight mean?