Versions of Iowa Code 679B.22 - Witnesses on LawServer 2023 Iowa Code 679B.22 – Witnesses 2022 Iowa Code 679B.22 – Witnesses 2020 Iowa Code 679B.22 – Witnesses 2018 Iowa Code 679B.22 – Witnesses 2016 Iowa Code 679B.22 – Witnesses 2014 Iowa Code 679B.22 – Witnesses. 2009 Iowa Code 679B.22 – Witnesses