http://www.cl.cam.ac.uk/~rja14/Papers/making-bitcoin-legal.pdf Ross Anderson, Ilia Shumailov and Mansoor Ahmed
shoulda read http://trilema.com/2014/guidance-there-is-no-such-thing-as-bitcoin-taint/
and http://trilema.com/2012/the-reasons-why-bitcoin-securities-cant-be-regulated-by-the-sec/