Why does shakespeare use the princes investigation in the final scene of Romeo and Juliet?

Answer 1

Like the ending of a mystery story, an enquiry enables the various threads of the story to be brought out and knotted together. The various characters reveal the secret information they have been hiding and gradually the whole picture becomes clear. The way Shakespeare does this is typical of his comedies, particularly those based on misunderstandings, such as The Comedy of Errors, Twelfth Night, and most spectacularly, Cymbeline. It is another way in which Romeo and Juliet, although clearly a tragedy, is written using the conventions of comedy.