What event begins to change Hale's opinion about the arrests in the crusible?

In Arthur Miller's "The Crucible," Reverend Hale's opinion begins to change when he witnesses the consequences of the witch trials firsthand, particularly during the examination of Elizabeth Proctor. As he sees innocent people being accused and the impact on families, he becomes increasingly troubled by the integrity of the court and the motivations behind the accusations. This realization leads him to question the validity of the trials and the morality of the actions taken by the townspeople.