Thames Valley Police have said that forensic scientists are still searching for "evidence of Jayden in a cemetery and in a particular grave".
In a video uploaded to YouTube, Detective Chief Superintendent Andy Murray said that it was a "slow and meticulous process" and that scientists would remain there "if necessary, all night".
More top news
By Sunday it should become drier with spells of winter sunshine but temperatures will still remain on the cool side.
There was no White Christmas but here's a look at the best Boxing Day snow scenes.
Actor Dustin Diamond allegedly stabbed a man in a bar in the US after getting into an argument on Christmas Day.