A civil case against an alleged money launderer based upon the defendant’s dishonest assistance in a breach of trust, the Privy Council held that a person could know, and could certainly suspect, that he was assisting in a misappropriation of money without knowing that the money was held on trust or what a trust meant: it was sufficient, on the facts of that case, that the defendant “entertained a clear suspicion” that there had been a misappropriate of monies.

http://www.bailii.org/uk/cases/UKPC/2005/37.html