Versions of Iowa Code 321.81 - Presumptive evidence on LawServer 2023 Iowa Code 321.81 – Presumptive evidence 2022 Iowa Code 321.81 – Presumptive evidence 2020 Iowa Code 321.81 – Presumptive evidence 2018 Iowa Code 321.81 – Presumptive evidence 2016 Iowa Code 321.81 – Presumptive evidence 2014 Iowa Code 321.81 – Presumptive evidence. 2009 Iowa Code 321.81 – Presumptive evidence