must be a nexus between threat made and crime committed
Hasan?
cannot use defence if voluntarily associated with violent criminals
Graham test
D must have a reasonable belief in the circumstances that led D to have a good cause to fear death or serious injury if he did not comply
A sober person of reasonable firmness, sharing the characteristics of D, might have acted as D did. - Bowen – low IQ / vulnerable / self-induced not included; only age, sex, pregnancy, serious physical disability, recognised mental illness or psychotic conditions included.
