The 2008 Liechtenstein tax affair is a series of tax investigations in numerous countries whose governments suspect that some of their citizens have evaded tax obligations by using banks and trusts in Liechtenstein; the affair broke open with the biggest complex of investigations ever initiated for tax evasion in the Federal Republic of Germany.[40] It was also seen as an attempt to put pressure on Liechtenstein, then one of the remaining uncooperative tax havens—along with Andorra and Monaco—as identified by the Paris-based Organisation for Economic Co-operation and Development in 2007.[41] On 27 May 2009 the OECD removed Liechtenstein from the blacklist of uncooperative countries.[42]