Cannabis use is illegal Cannabis use is illegal in many places around the world, but in some, it has been decriminalized for medicinal reasons. Anyone who wants to use, possess and grow cannabis are advised to check the local laws and regulations on cannabis before they do anything else.If you are located in a place where medical cannabis has been legalized, you have to secure a medical cannabis id card first. Here are the general steps on how to acquire one:Undergo an exam so ...