Fakes were purported to be by Charles Blackman and Robert Dickerson

Concepcion is alleged to have sold fake Matisses and Calders among others, complete with forged certificates of authenticity

The gallery dismisses the suit as a “smear campaign”

Former Factory assistant claims he made the disputed work

An attempt to smuggle it was thwarted in the US

Marion True faces charges of conspiring to receive illicitly excavated artefacts

The decision ends a dispute that started in 2000

The US lawsuit alleged they created a shell company to avoid paying dues

He has been released on bail, which was set at $1 million

The Duke of Buccleuch's disputed masterpiece has yet to be found

Taxman claims he and others created a shell company to avoid tax

Indonesia is a big country and everything about it is larger-than-life; its despots, its riots and, apparently, its art frauds

Unrecovered paintings stolen in Frankfurt, 1994.

Founder of unauthorised casts sentenced to ten years

Esteemed artworld professionals have been arrested as part of a wide-reaching investigation into antiquities smuggling with links to an ongoing New York court case.

Two Constables and three small paintings discovered to be missing from storage

Following thefts, Tate receives funds to repurchase works stolen in Frankfurt

As recalled by Dick Kingzett of Agnew’s

Defendants' story was "reasonably possibly true"

Next month the Belgian city of Ghent is mounting a high-tech search for a panel of Van Eyck's masterpiece missing since 1934

Customs at Moscow airport impound suitcases full of papers about the Avant-garde

The owner's careless sales technique led the carabinieri right to his doorstep

Scotland Yard launches computer system with international potential

Stumbling blocks: attempts to define “national treasure” and abolition of passage of title in “good faith” purchases