Have I got it wrong - I understood that the lady from the Government said that estates stayed on the Bona Vacantia list until they were solved or for 12 years. However, in this series of Heir Hunters they have talked about hunts that they went back to after several years. Today's programme reopened a case that was started 20 years ago, and because of the new resources available they were able to find heirs. If there are only 12 years to claim, how does this happen?