The Inspector as a moral force / dramatic device

From his first entrance, Priestley engineers the Inspector as a force that disrupts capitalist comfort. The stage directions specify that he creates 'an impression of massiveness, solidity and purposefulness', a tricolon of weighty abstract nouns that grants him moral, almost geological authority. Crucially, he arrives immediately after Birling's complacent speech that 'a man has to mind his own business and look after himself and his own', so the Inspector's entrance is choreographed as a structural rebuke. Priestley uses the contrast between Birling's individualist creed and the Inspector's gravitas to position him from the outset as the embodiment of an opposing, collectivist morality.

Priestley constructs the Inspector's interrogative method as a moral instrument rather than a forensic one. He deals with witnesses 'one person and one line of inquiry at a time', a technique that forces individual responsibility upon each Birling rather than allowing collective evasion. His refusal to be hurried - 'I haven't much time' - paradoxically slows the play's pace, granting moral weight to each confession. By controlling the rhythm of disclosure, the Inspector becomes a dramaturgical device that prevents the audience from sharing the Birlings' habitual desire to move quickly past discomfort, modelling the patient, sustained ethical attention Priestley believed his post-war society required.