Five former Connecticut police officers who were arrested for allegedly mistreating a prisoner after he was paralyzed in the back of a police van applied Wednesday for a probation program that could result in the charges being erased. The applications further frustrated Richard “Randy” Cox's supporters, who have criticized prosecutors for only charging the five former New Haven officers with misdemeanors — negligent cruelty to persons and reckless endangerment. A judge in New Haven scheduled a Nov. 1 hearing to determine whether the ex-officers are eligible for accelerated rehabilitation, a program generally for first-time offenders that can erase minor criminal charges if defendants successfully complete a period of probation.