Wisdom would include avoiding all luthiers who don't have a well established build history. So, how do up-and-coming artists get their start? The majority are not shady. It isn't fair that all be judged by bad apples such as Darrin Huff.
You asked about Darrin Huff -- he was in the above category. He'd built a custom EB3 style bass for Mike Watt, a few other customs, but only a half-dozen of his unique designs. That design appealed to me, so I conversed with him via email, also by phone a couple of times. I also reached out to other customers who gave glowing reviews of Darrin and his instruments. Despite this due diligence I knew I was taking a chance, but felt that there was no more I could do.
The full story is here, but it's 252 pages long. To sum up: around 20 of us are still waiting for basses that were ordered as long as 20 years ago (20th anniversary of my order will be this April).
USA does too. I live on the east coast of the USA, Darrin Huff lives on the west coast. Would not have been worth my while to take him on out there. Besides, even if his customers did take him on and win -- the very best case scenario -- we would not have been made whole (repaid in full): he would have had to liquidate his meager assets and we would only have received a small fraction of what we'd given him up front. I don't see how that would be different anywhere else.
And statute of limitations comes into play and will vary by state. The legal system really only exists to help mega-corporations.