[2006] EWCA Crim 1156

A defendant to a charge under the Health and Safety at Work etc. Act 1974 s.2 , s.3 or s.4 , in asking the jury to consider whether it had established that it had done all that was reasonably practicable, could not be prevented from adducing evidence in support of its case that it had taken all reasonable steps to eliminate the likelihood of the relevant risk eventuating.

CA (Crim Div) (Latham LJ, Cooke J, Sir Richard Curtis)

22/05/2006