By making these differences concrete and conscious, they were able to have a constructive dialogue that led to ground rules for decision-making.

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We think that the brain rules our decision-making process but it's pretty clear from operations like this that our guts have a very profound effect on how we behave.

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Legal decision-making often gravitates to simple, clear rules that are easy to apply.

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However, Sir John adds that there is "room for greater transparency and flexibility in how some of the current rules are framed and applied and for a broader-based decision-making and review process".

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