Do not buy any antiquity that may have come from conflict zones, like Syria and Iraq
Check with a stolen art database;
Ask about the provenance, then actively check it;
Look at the back of works, outside of their frames;
Ask about forensic testing;
Hush-hush! Wanna buy an Oscar? Where are all of the Academy Awards that have gone missing? Is an Oscar cat burglar on the loose?
Read Steve Rose's recent article in the Guardian UK to find out the... 