Versions of Iowa Code 17A.13 - Subpoenas -- discovery on LawServer 2023 Iowa Code 17A.13 – Subpoenas — discovery 2022 Iowa Code 17A.13 – Subpoenas — discovery. 2020 Iowa Code 17A.13 – Subpoenas — discovery. 2018 Iowa Code 17A.13 – Subpoenas — discovery. 2016 Iowa Code 17A.13 – Subpoenas 2014 Iowa Code 17A.13 – Subpoenas – discovery. 2009 Iowa Code 17A.13 – Subpoenas — discovery