Security for Karen Read's first trial cost Massachusetts State Police more than a quarter of a million dollars.

Prosecutors have called on the state's highest court to allow them to retry Karen Read for murder in the death of her Boston police officer boyfriend, arguing against defense claims that jurors had reached a verdict against some of her charges before the judge declared a mistrial.

Prosecutors say there’s no basis for dismissing the charges of second-degree murder and leaving the scene of the accident, arguing that the state’s retrial cannot be double jeopardy.