A Delaware County Court judge has granted the request by prosecutors for an out-of-county judge to hear a case involving a former assistant district attorney who allegedly was involved in a hit-and-run.

President Judge Joseph P. Cronin Jr. did not set a date for the preliminary hearing for Michael Donohue. The hearing was originally set for Dec. 27. He agreed to continue the hearing until the new judge has been assigned. Deputy Attorney General Joseph E. McGettigan is prosecuting the case.

On Nov. 4, Donohue, 31, of Haverford Township, was driving on Township Line Road in Upper Darby when he allegedly struck a 15-year-old boy crossing the street. Donohue, who was talking on a cellphone at the time of the crash, stopped for a second and then left the scene. He had been out drinking with coworkers prior to the incident, according to court documents. The Haverford teen suffered serious injuries to his head and hip. Donohue was charged with aggravated assault, reckless driving, and related crimes. - Mari A. Schaefer