(a)      (1)      Except as otherwise provided in paragraphs (2) and (3) of this subsection, a police employee who resigns from the Department for any reason may not be reappointed.

            (2)      A police employee who resigns to enter military service may be reappointed.

            (3)      By rule, the Secretary may reappoint a police employee who resigned in good standing if the individual meets the requirements then applicable for initial appointment.

            (4)      An individual may not be reappointed to a rank higher than the rank that the individual previously held as a police employee.

      (b)      An employee who is terminated from the Department may not be reappointed.