thievery : the act or practice or an instance of stealing — Webster
Thievery is the taking of another person’s property or services without that person’s permission or consent with the intent to deprive the rightful owner of it. The word theft is also used as an informal shorthand term for some crimes against property, such as burglary, embezzlement, larceny, looting, robbery, shoplifting, library theft or fraud. In some jurisdictions, theft is considered to be synonymous with larceny; in others, theft has replaced larceny. Someone who carries out an act of or makes a career out of theft is known as a thief. — Wikipedia
British Museum to repatriate ancient tiles smuggled into UK in a suitcase (Mark Brown, The Guardian)
Should Museums Return Looted Artifacts to Their Countries of Origin? (Nicole Daniels, The New York Times)
Repatriation of Cultural Property (Wikipedia)
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