excuse her actions to get herself out of trouble. This shows that her character is extremely sorry, unlike her father's character that is very unrepentant, is not ready for one moment to admit even part blame, whereas on the other hand Sheila accepts full responsibility.
I think, as the Inspector knew that Sheila, being a younger character, was most likely to admit her blame and accept the consequences of her actions. It was only right for her to know that she was only partly to blame, which is why he encourages her to stay and listen to what he has to say so that she doesn't feel entirely responsible. Mr Birling is not encouraged to stay, since he is simply annoyed by the subsequent questioning put across to him and his family.
Sheila, is very quick to realise the Inspectors motives, and tries to warn the other members of her family not to lie about their previous actions, as she knows that the Inspector is going to get to the bottom of the situation and make them all realise their involvement in Eva's death. She knows that he is going to expose everything and even tries to make the situation better by attempting to hurry up the questioning - You see I feel you"re. She even tries to warn her mother about not immediately admitting her responsibilities.
When Mrs Birling's story is revealed, both Mr Birling and Sheila continue to display different reactions. Sheila continues to show her sympathy for Eva, whilst her father continues to defend him and his family's position. This is shown when all he is worried about, is the possible scandal if the press take this up. Whereas Sheila says she thinks it was cruel and vile. This again emphasises how unrepentant Mr Birling is and how remorseful and sympathetic Sheila is. Mr Birling also says is there any reason why my wife should answer questions from you, Inspector? Trying to bring his high social classification, into the matter to threaten the Inspector.
