I came across an interesting article on the website of the Nigerian Economic and Financial Crimes Commission.
The article notes that the Nigerian Authorities are taking measures to recover laundered money, which has been deposited in UK bank accounts. The money was laundered for the late Head of State, General Sani Abacha.
The British Financial Services Authority (FSA) estimates that in excess of $1.3BN has been laundered through British bank accounts, between 1996 and 2000, by Abacha's henchmen.
The full article can be accessed here.