Dever, who worked in Canton at the time of Read’s arrest, was called by the defense Monday morning. On the stand, she faced aggressive questioning from Alan Jackson, one of Read’s lawyers, about a statement she made to federal investigators looking into the death of Read’s boyfriend, John O’Keefe.

Read, 45, is accused of fatally striking her boyfriend, Boston Police Officer John O’Keefe, 46, with her SUV and leaving him to die in the snow outside another officer’s home after dropping him off at a party in January 2022. Her lawyers say she was framed in a police conspiracy and that someone inside the house killed him.