Danish-Vietnamese artist says his “artistic integrity has been violated” by Rotterdam judge’s ruling in Bert Kreuk case

Book tells of Nadia Plesner’s three-year battle to clear her name after luxury fashion company took offence at her drawing of a designer bag

Atena Farghadani punished after depicting politicians as animals

Freedom of expression at centre of lawsuit claiming that professor’s advice was “harassment”

One of the main art databases, the Art Loss Register, has issued certificates for works looted or subject to recovery claims

Destruction of artefacts in Syria and Iraq is a pressing issue but UK remains only major power not to ratify international law

Authorities claim that Kapoor organised global trade in stolen Asian antiquities, casting doubt on some of his gifts to international museums

Gagosian Gallery and six Hollywood execs in months of negotiations to use images of Superman, Iron Man and Spiderman <br>

State’s House of Representatives urges Fred Jones Jr Museum of Art to step up its provenance research

Poaching leads Willis to get injunction and accuse JLT of conspiracy

Sale of more than 2,000 works from Helge Achenbach's company expected to fetch between €3m and €4.5m

Artyom Loskutov was jailed by Siberian police after organising a May Day counter-march

Panel of federal judges say 5% resale royalty law can only apply to works sold within California

Legal conference tackles issues facing US museums, from commissioning work to developing diversity

Three lawsuits allege that a storage facility company, a subsidiary of Christie’s, failed to take proper precautions, despite urgent warnings

Work commissioned under Percent for Art causes controversy as the public and politicians across the US criticise the scheme

New law would dilute powers of the “commissaires-priseurs” system and give responsibility to non-experts