Versions of See prior versions of a law on LawServer 2023 Oregon Statutes 475.235 – Burden of proof; status of analysis of controlled substance; notice of objection 2021 Oregon Statutes 475.235 – Burden of proof; status of analysis of controlled substance; notice of objection 2019 Oregon Statutes 475.235 – Burden of proof; status of analysis of controlled substance; notice of objection 2017 Oregon Statutes 475.235 – Burden of proof; status of analysis of controlled substance; notice of objection 2015 Oregon Statutes 475.235 – Burden of proof; status of analysis of controlled substance; notice of objection 2013 Oregon Statutes 475.235 – Burden of proof; status of analysis of controlled substance; notice of objection 2009 Oregon Statutes 475.235 – Burden of proof; status of analysis of controlled substance; notice of objection