No member who has not served five years or more in said department shall be entitled to be retired and paid a pension under the provisions of this chapter, unless such disability was contracted while engaged in the performance of the member's duties, or by reason of following such occupation. The question of disability shall be determined by the trustees upon the concurring report of at least two out of three physicians designated by the board of trustees to make a complete physical examination of the member. After any member shall become entitled to be retired, such right shall not be lost or forfeited by discharge or for any other reason except conviction for felony.
Iowa Code § 410.8
Referred to in §410.18