Versions of Iowa Code 152.11 - Investigators for nurses on LawServer 2023 Iowa Code 152.11 – Investigators for nurses 2022 Iowa Code 152.11 – Investigators for nurses 2020 Iowa Code 152.11 – Investigators for nurses 2018 Iowa Code 152.11 – Investigators for nurses 2016 Iowa Code 152.11 – Investigators for nurses 2014 Iowa Code 152.11 – Investigators for nurses. 2009 Iowa Code 152.11 – Investigators for nurses