The judge in the Karen Read case in Massachusetts is ordering a hearing after the prosecution leveled serious allegations against the defense. 

Special prosecutor Hank Brennan accused the defense of coordinating testimony with expert crash reconstruction witnesses after telling the court they were retained independently. 

Judge Beverly Cannone immediately ended a motion hearing yesterday, warning that the information could have a profound effect on the defense and defense counsel. 

Read is accused of killing her Boston cop boyfriend by hitting him with her SUV and leaving him to die in the snow.  She says she's being framed.