Rob Griffin, Detective Chief Inspector, has told ITV News Central that he is confident about finding the remains of James Brodie.
A murder investigation was launched in 2007 after Brodie went missing following the shooting of a jeweller in Arnold in 2003.
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Rain may be heavy in places but should clear to sunny intervals and scattered showers later in the day.
Rain quickly spreads from the west, turning heavy over the higher ground. Sheltered eastern spots will escape the worst of the rain.
Marcus Willis, a current club coach ranked 772 in the world, came through six qualification matches to reach this year's tournament.