"The test is would an ordinary, prudent bystander have perceived that there was an obvious risk that setting fire to the paper in the offices would create an obvious risk that a person in the flats above would or might have their lives endangered? .... you [the ordinary, prudent bystander] then go on to consider whether it is not just simple arson but the aggravated being reckless as to whether the lives of Ann Woodward and Simon Heath would thereby be endangered. You know that the first and second floors have flats, residences, and you know that flats are there for people to live in, and you know that it is reasonable when you have two flats that there will be someone up there late at night asleep or enjoying themselves. So you as an ordinary prudent bystander watching what was happening but unable to play any part might say to yourself, 'Oh, it is obvious, anyone who does that is being reckless as to whether the lives of the people who might be upstairs are endangered ...."
"A person acts recklessly within the meaning ofsection 1 of the Criminal Damage Act 1971 with respect to: (i) a circumstances when he is aware of a risk that it exists or will exist; (ii) a result when he is aware of a risk that it will occur; and it is, in the circumstances known to him, unreasonable to take the risk."