Detective Sergeant Darren Barker, 51, died after being diagnosed with Covid-19
He joined the Met Police in 1992 and worked as a specialist financial investigator
Colleagues at Met described Det Sgt Barker as an 'extremely talented' detective
He is latest officer to die after contracting Covid, amid calls for police jab priority
Jon Wain, 49, a police constable in Bury passed away on Monday, February 15
Nick Oldfield, 48, a police constable for Staffordshire Police, died January 21