1300 DRUGSAFE 
So you noticed that a colleague at work had been acting rather oddly the past week. First, you see him just staring blankly into space while sitting at his desk. Then, as you passed by each other on your way to the water cooler, you notice that your co-worker’s eyes are bloodshot and glazed. Later, as he handed you some documents, you couldn’t help but notice that he keeps on wearing long-sleeved shirts even when the weather is hot. With everything you’ve observed, you are beginning to suspect your work colleague is using drugs.
If you suspect that a colleague is taking drugs, you cannot just ignore it and hope it will pass. Especially if that colleague also happens to be a friend. Just consider the impact drugs can have on your colleague, their family, your employer/company and your other co-workers.