BBC Radio 4 has a couple of programmes available that may be of interest to FT readers, presented by archaeologist and broadcaster Mike Pitts.

Broadcast on Sunday 7 February and available to download for a week from the BBC Radio 4 site, 'In Pursuit of Treasure' is an investigation into the world of the metal detector, from harmless amateur history buffs to criminal nighthawkers, with its infighting and impact on our national heritage.

In a new two-part series, 'The Voices Who Dug Up The Past', Mike Pitts asks why different archaeologists can dig the same sites yet reach completely different conclusions. In the first episode, available to download until 8 February, he visits Maiden Castle, Britain's biggest Iron Age Hill fort, in search of answers.