The only people who should be concerned about the introduction of these random tests are the ones who know they
should be concerned!
It really isn't that hard to be off the piss in time to be safe and legal for work. If something stronger/more illicit is your poison then expect a trip up **** creek with a turd for a paddle. Who gives a rats arse if people who get caught and lose their licence or whatever. The industry will be better off without them.
Don't let the door hit you on the way out!