Three strikes and you're out! No matter who you are! There has to be some level of intimidation, with production hanging over everybody's head like the sword of Damocles!
The mine capitan should carry a pocket full of pink slips! A sniff of booze and you're out. Forget rehab, somebody else can look after that! Any other work related issue like sleeping on the job allow 2 warnings!
The enviroment in a mine is too dangerous for any other approach!
Without some form of intimidation you "don't get no respect!"
If necessary fly into Diavik and see how the big boys do it!
This is not a "First Nations" issue!
RUF