Upon becoming a member as that term is defined in subsection (21) of K.S.A. 74-4902 members of the legislature or former members of the legislature as described in K.S.A. 74-4991, shall be entitled to and governed by all the provisions relating to rights, powers, duties, liabilities and benefits for members, their dependents and beneficiaries. For the purposes of this act the member's prior service annual salary shall be computed by multiplying by twelve (12) the highest monthly compensation received as such member of the legislature in the year immediately preceding the entry date as defined in this act or in the last year during which he or she served as a member of the legislature.
K.S.A. 74-4993