Versions of Iowa Code 124.401B - Possession of controlled substances on certain real property -- additional penalty on LawServer 2023 Iowa Code 124.401B – Possession of controlled substances on certain real property — additional penalty 2022 Iowa Code 124.401B – Possession of controlled substances on certain real property — additional penalty. 2020 Iowa Code 124.401B – Possession of controlled substances on certain real property — additional penalty. 2018 Iowa Code 124.401B – Possession of controlled substances on certain real property — additional penalty. 2016 Iowa Code 124.401B – Possession of controlled substances on certain real property 2014 Iowa Code 124.401B – Possession of controlled substances on certain real property – additional penalty. 2009 Iowa Code 124.401B – Possession of controlled substances on certain real property — additional penalty