Except as provided in subsection (b) of this section, this Part II of this subtitle applies to an individual who is a member of the Law Enforcement Officers’ Pension System. This Part II of this subtitle does not apply to an individual who: is a member of the Law Enforcement Officers’ Pension System; transferred to the Law Enforcement Officers’ Pension System from the Employees’ Retirement System; and did not elect to participate in the Contributory Law Enforcement Officers’ Modified Pension Benefit as provided in § 26-211 of this subtitle.