Arizona's marijuana legalization, as of November 2020, has an impact on past marijuana charges. While it allows for the legal possession and use of marijuana for adults, it doesn't automatically expunge or overturn prior convictions or charges related to marijuana. If you have previous marijuana-related convictions or charges on your record, they generally remain unless you take legal action to have them expunged or sealed. It's advisable to consult with an attorney experienced in Arizona's updated marijuana laws to understand how they specifically apply to your past charges and to explore the possibility of expungement or other legal remedies based on the changed legal landscape.