What case first established necessity
Dudley and Stephens
What crime is necessity not allowed for
Murder
What case created the 3 parts that must succeed in order for necessity to stand
Shayler
What are the 3 parts set out in Shayler
i) the act is needed to avoid inevitable and irreparable evil;
(ii) no more should be done than is reasonably necessary for the purpose
to be achieved;
(iii) the evil inflicted must not be disproportionate