Versions of Iowa Code 322.24 - Hearing -- subpoenas on LawServer 2023 Iowa Code 322.24 – Hearing — subpoenas 2022 Iowa Code 322.24 – Hearing — subpoenas. 2020 Iowa Code 322.24 – Hearing — subpoenas. 2018 Iowa Code 322.24 – Hearing — subpoenas. 2016 Iowa Code 322.24 – Hearing 2014 Iowa Code 322.24 – Hearing – subpoenas. 2009 Iowa Code 322.24 – Hearing — subpoenas