Fort McMurray, Alberta | (75 construction employees) and CLAC Local 63, Construction
British Columbia | (493 construction employees) and Boilermakers, Iron Ship Builders, Blacksmiths, Forgers and Helpers Local 389
'Leaving work was specifically an attempt to avoid an unfavourable substance test'
'You have to be really careful or people can get hurt,' says employment lawyer offering insights, takeaways from recent case
Worker broke clear, cardinal rule and lied about it
