20-year-old Jed Foster has appeared in court.
PC Andrew Harper was responding to a reported burglary late last Thursday night and died after being dragged along by a vehicle near the village of Sulhamstead.
It happened near the crossroads of Ufton Lane and Lambdens Hill, off the A4 between Reading and Newbury.
20-year-old Jed Foster from Pingewood near Reading, who is accused of killing the 28-year-old, appeared via video link at Reading Crown Court this morning.
He's been remanded in custody, and is due to go on trial in January.
A plea hearing is expected to happen in November.
Yesterday, at Reading Magistrates Court, his lawyer Rob Jacques told the court Foster denies "any involvement in the horrific murder" of PC Harper.
(The family of PC Andrew Harper arriving at Reading Magistrates Court)
Foster is also charged with the theft of a quad bike.
He was charged with murder on Monday night after detectives at Thames Valley Police were given an extra 24 hours to question 10 suspects in total.
The other nine - aged between 13 and 30 - were released on bail until 13 September.
(Jo, the mother of Jed Foster, with his stepfather (name not given) outside Reading Magistrates Court)
PC Harper described as "well-known across the force", had married his wife Lissie at Ardington House in Oxfordshire just four weeks before his death. He was due to go on honeymoon this week.
She spoke about her loss for the first time yesterday and described her husband as "the kindest, loveliest, most selfless" person.