Bank sells several works to recoup $3m loan

He is accused of defrauding his investors, which include charities

Vladimir Nekrasov has been charged with corporate tax evasion

The latest in the trial of former Getty antiquities curator, Marion True, and the Paris-based dealer Robert Hech both charged with conspiring to receive illegally excavated antiquities

Allegations circulate that curator Pontus Hultén created unauthorised replicas

Charges focus on former executive director of the New York Academy of Art

The Merrin brothers are accused of defrauding clients out of millions of dollars

Roland Dumas and Jacques Tajan face accusations of abuse of confidence after evidence suggests proceeds from auction were illicitly retained

Death threats, market interests and too many specialists bedevil research into the subject

NY District Attorney promises amnesty for those who come forward while corporate executive Samuel Waksal enters a guilty plea for tax evasion

What effect will the internet have on a market traditionally based on face-to-face contact and what are the implications of increased access to information?

Bryn Lloyd Williams, a former dealer, duped Desmond Guinness of the Irish Georgian Society and cheated investors out of £1.8 million, while Expressionist fakes toured 12 US colleges

Defendants' story was "reasonably possibly true"

Criminal proceedings over early English pottery fraud

Experts complain that large number of fakes in the market makes it difficult to identify authentic works

It is estimated that between 65-80% of Giacometti furniture and sculpture offered at auction since 1986 is fake