As used in this chapter:
In all cases of doubt, the school employees retirement board shall determine whether any person is an employee, as defined in this division, and its decision is final.
Prior service, for service as an employee in a capacity covered by the public employees retirement system or the state teachers retirement system, shall be granted a member under qualifications identical to the laws and rules applicable to service credit in those systems.
Prior service shall not be granted any member for service rendered in a capacity covered by the public employees retirement system, the state teachers retirement system, and this system in the event the service credit has, in the respective systems, been received, waived by exemption, or forfeited by withdrawal of contributions, except as provided in this chapter.
If a member who has been granted prior service should, subsequent to September 16, 1957, and before retirement, establish three years of contributing service in the public employees retirement system, or one year in the state teachers retirement system, then the prior service granted shall become, at retirement, the liability of the other system, if the prior service or employment was in a capacity that is covered by that system.
The provisions of this division shall not cancel any prior service granted a member by the school employees retirement board prior to August 1, 1959.
R.C. § 3309.01