The original question had to be edited. At the point when Corey interrupts the court, his wife is being questioned. Martha has been arrested on the grounds of being a witch. Information that Giles offered in a very matter of fact manner has been manipulated to make it seem as if Martha dabbles in witchcraft. She is being questioned by Hathorne about what she does and if she is a witch. It is here in which Corey enters the courtroom, seeking to present a deposition and enter evidence against Putnam.
For Corey, his entrance into the courtroom is representative of his identity. He feels tremendous guilt having offered the evidence being used to condemn his own wife. At the same time, Corey presents himself as quite rational and reasonable in terms of drafting the deposition against Putnam, something upon which the judges remark. At the same time, his interruption of the court is reflective of the desire Corey has to tell the truth. In this spirit, he interrupts the court while his wife is being questioned.
His wife, Martha, was being questioned. She was suspected of being a witch and Giles Corey interrupts the court because he was seeking to present a deposition in front of the court.