They bring their own illegal drugs. This place welcomes them to use more safely

OnPoint NYC opened the first two facilities in the nation that welcome drug users to use their own drugs under supervision in order to prevent overdoses. Here's an inside look into how it all works.

source https://www.cnn.com/videos/health/2022/02/16/safe-injection-sites-overdoses-new-york-orig-mss.cnn