This question applies to all employees. You don't, because it's none of your business if it doesn't affect their work performance. It is entirely possible, and probably likely that some your current employees use drugs. And almost 100% sure that some of them use alcohol, which is stronger and more problematic than many illicit substances. Many companies even throw parties where they give out free booze to the employees! How's that for a double standard?
People have always used drugs, and always will. Pretending to care about substance abuse only when you come across someone who openly admits their history is insane. You are treating the honest people worse than the people who hide their problems from you.
This question applies to all employees. You don't, because it's none of your business if it doesn't affect their work performance. It is entirely possible, and probably likely that some your current employees use drugs. And almost 100% sure that some of them use alcohol, which is stronger and more problematic than many illicit substances. Many companies even throw parties where they give out free booze to the employees! How's that for a double standard?
People have always used drugs, and always will. Pretending to care about substance abuse only when you come across someone who openly admits their history is insane. You are treating the honest people worse than the people who hide their problems from you.