The surviving spouse of a disability retiree under the Law Enforcement Officers' Retirement System as consolidated into the South Dakota Retirement System pursuant to § 3-12C-1601 shall upon the death of the member be entitled to an annuity equal to one-half the member's annuity at the time of death. The retirement for disability upon which annuity was based shall have been approved prior to July 1, 1974. Source: SL 1979, ch 26 , § 3A; SDCL § 3-12-94.1 ; SL 2019, ch 22 , § 1; SL 2021, ch 27 , § 7.