Italian Stefano Brizzi, 50, allegedly murdered 59-year-old Pc Gordon Semple at his London flat some time between April 1 and April 7.
Mr Semple was originally from Inverness in Scotland and had been with the Metropolitan Police for 30 years.
He went missing on April 1 and his remains were discovered a week later after a neighbour alerted Scotland Yard to a “smell of death” coming from a property on the Peabody Estate in Southwark Street, south London.
Recorder of London, Nicholas Hilliard QC, has already set a provisional date for Brizzi to face trial on October 18.
The defendant, who is in custody, is due to appear before the Old Bailey judge via video link.