[nasmorn]

If you start enforcing Labour laws for everyone that is sent between multi nationals a lot of economic activity will simply cease. Do you think every American going abroad for their company has all the right paperwork? If you don’t let Mr Kim who is the only guy who knows how to rig some robots together in because he said something naughty about Trump on Facebook once you will have to build your own factories

[adrianmsmith]

I mean, yes, I would hope they have the right paperwork? E.g. if you're going on a business trip then you're going to need a visa allowing business trips, if you're going to work you're going to need a visa that allows work, etc. I don't see why this is unreasonable.

If it is unreasonable then the rules need to change - no point having rules if they can't be enforced.

[rsynnott]

There's a lot of ambiguity at the edges, on that.

B1 visa (the 'business trip' visa): > A B-1 visa may be granted to specialized workers going to the United States to install, service, or repair commercial or industrial equipment or machinery purchased from a company outside of the United States, or to train U.S. workers to perform such services.

So on the face of it you'd think a B1 visa would be sufficient here.

[_DeadFred_]

Go read Federal court cases and see how much they have to extend 'good faith'. You can't strictly enforce systems on people, it doesn't work. Even Federal courts recognize this and have to extend 'good faith' to Federal officers and trust intentions versus strictly following the rules.