Further tests will be carried out on the body of George Michael after a post mortem found the cause of his death to be 'inconclusive'.
The results of these tests are unlikely to be known for several weeks.
Thames Valley Police says it is preparing a file for the Oxfordshire Coroner.
Mr Michael’s death is still being treated as unexplained but not suspicious.
The former Wham! star was found dead at his home in Goring-on-Thames, Oxfordshire, on Christmas Day.
George Michael's family say they want a full investigation into how a 999 call, made after his death in Goring, was apparently leaked.
Thames Valley Police say their inquiries into George Michael's death at his home in Goring are routine - the Major Crime Unit ISN'T involved