Non-refoulement --- Thanks Nathalie and others. I've never tried to create a list of the most-breached customary international law principles, but it's worth noting that in strict refugee law N-R stands out as the only prominent "law" which is not especially named in the main convention. I also watch a lot of governments try to wriggle away from allegations that they have breached N-R. I also see a lot of governments, very many, accused on strong grounds of violating the rules around arbitrary arrest, detention, torture and more.

Source author: Christopher Lamb christopher.lamb17@gmail.com