[jackric]

I agree Safety is the top priority. Don't risk people with drugs traces in their blood; it may degrade their competence. Also don't risk a guy that didn't sleep last night working - his competence will be degraded.

I proposed my catch-all solution for this in another comment: https://news.ycombinator.com/item?id=26183297

My ideal is we just ensure competence - guy who smoked weed last night may be more competent than a clean guy getting divorced. Test the competence

[mfer]

A lot of this is driven by insurance agencies and data from investigations of events. I don't have insight into that. Insurance companies, these days, tend to be very data driven.

It would be great if there was a way to test for competence. Some drugs cause long term issues with decision making and being able to see what's likely to happen. This reminds me of a job I had years ago framing houses. I remember some of the work men firing nails from a nail gun into a nearby woods. An area where neighborhood kids happen to play.

That's poor decision making and a liability. How do you test for complex things like that?

[jackric]

Hmm perhaps decree a method/routine to processes like nail gunning. A bit like the Japanese rail staff with their pointing routines.

Film the worksite or send surprise inspectors to catch workers too lazy/reckless about their nail gunning. Maybe show them videos of nail gun injuries!

Improper nailgunning I think is more related to ingrained attitude than ephemeral competence degraders (drugs)