Hmmm, this is a great question...my dh is the attorney for a very well known thrift store nationwide. I'll have to run this ethical question by him. I purchased an authentic vintage crescent
Coach at a thrift for $16 (1/2 price day!). I wondered at that time if it was authentic and the very nice clerk told me that they DO NOT authenticate.
So I purchased and then had it authenticated here (I think).
But a fake is a fake is a fake......they shouldn't be sold anywhere and 'not knowing' seems like a good way to pass the buck and to not be culpable.
Standing in front of a Traffic Court judge and telling him or her that you "didn't know" the speed limit was only 25 MPH won't get you very far. Unfortunately when posters have actually called thrift shop owners out about selling fakes and they actually admit the item might not be genuine, that's the attitude most of them seem to have.
And like we've mentioned here before, no law enforcement agency, whether local, US Customs, Homeland Security or the FBI, wants to look like a bunch of cold-hearted jerks for shutting down or bringing charges against a "non-profit", and the NPs use that to their advantage too.
They also seem to think that the law exempts non-profits from obeying it, which it clearly does NOT:
http://www.ipcrimes.com/pdf/federal_statute.pdf
and
http://codes.lp.findlaw.com/uscode/18/I/113/2320
The only exemption of any kind I've found so far for "non-profit entities" refers only to public libraries, archives, etc in connection with intellectual property under the Digital Millenium Copyright Act (DMCA).
http://www.justice.gov/criminal/cybercrime/docs/prosecuting_ip_crimes_manual_2013.pdf
3. Certain Nonprofit Entities
Section 1204(b) exempts from criminal prosecution all nonprofit libraries,
archives, educational institutions, or public broadcasting entities as defined by
17 U.S.C. § 118(f ). See also 17 U.S.C. § 1201(d) (listing other entities). The
exception set forth in § 1201(d) for nonprofit libraries, archives, and educational
institutions is not as broad as the exemption from criminal prosecution for
the same group of entities set forth in § 1204(b), because the latter (1) also
includes “public broadcasting entities” and (2) precludes prosecution for the
anti-circumvention and the anti-trafficking violations of § 1201.
I really don't know why the FBI, Homeland Security and Customs don't send an official letter and email to every CEO and the head of every legal department of every registered non-profit in the country explaining clearly what their responsibilities are regarding the selling of counterfeit trademarked merchandise, along with a copy of the law(s) involved.