Earlier quoted context omitted.
> Can you expand on what regulations you feel are lacking [..] It's fundamentally wrong for one human (the PhD supervisor) to have so much unchecked power over another (the PhD student). Without changing how the entire system works, I'm not sure how you fix that by means of regulation.
It's not really unchecked though. There's the department vice chair, department chair, the college dean, the dean of student affairs, a student senate, a faculty senate, etc. etc... there's a structure here for resolving grievances.
That may look good on paper. Yet a 20-something student vs an academic surrounded by supporters and wielding power and influence, it's only ever going to go one way.
I've personally been on the wrong end of it. After reviewing my options, noting that my supervisor had just been elected Fellow of the Royal Society in London, I decided to bite my tongue, complete my PhD, and leave.
The relationship was so broken I didn't even say goodbye to my supervisor (literally cleared out all my stuff from the lab very late one night), and I've never spoken to him, or had any contact with anyone in his research group ever since.