“the fifth emergency service”: the uk’s volunteer detectorists

Tune in to Closer’s pick of the telly everyone’s talking about

Dog lover Karen Hardcastle trains puppies to help deaf people

With one of the UK’s longest-running missing persons cases solved after 52 years, we explore other high-profile disappearances

Best friends Dorothy Proietti and Gill Mattock volunteered together when they retired

Private investigators Emma Coles and Sam Hutchinson on surveillance, secret cameras, solving cases – and still being home in time for the school run

CHARLOTTE SPENCER, HUGH BONNEVILLE and EMUN ELLIOTT on how the search for the Brink’s-Mat loot takes a fresh turn