Provenance is the third episode of the third season. It was released on 6 October 2006.
The theft of a high-profile painting, which unexpectedly turned into a murder, has the team exploring a disputed chain of custody and possible insurance fraud.
- The technical term for the established history and documented 'lineage' of works of art, the proof needed to create an unbroken line of legitimate ownership. This issue is particularly thorny - and expensive, in terms of legal fees - with stolen and plundered works of art, with numerous objets d'art from WWII still being haggled over.