what incriminating information has been given about elizabeth that day at the trial? who made the accusation?

Mary Warren tells John and Elizabeth that Elizabeth was accused at the trial, but that she (Mary) had said that she had never seen Elizabeth do anything that smacked of witchcraft. However, when Cheever and herrick come to arrest her, they ask about the "poppet" and the needle stuck in the poppet which Abby says Elizabeth used as a kind of "voodoo" doll sending out her witchcraft to hurt Abigail.