The funeral of PC Keith Palmer, who was killed inside the Westminster attack, will take place in London’s Southwark Cathedral later.
PC Palmer was guarding the Houses of Parliament when he was stabbed by Khalid Masood on 22 March. He will have a full police funeral.
Thousands of officers will line the route as his coffin is usually taken coming from a chapel at the Palace of Westminster.
His body has been lying in rest there by special permission of the Queen.
His coffin was taken to the Chapel of St Mary Undercroft on Sunday as well as received by a guard of honour coming from his police branch, the Parliamentary as well as Diplomatic Protection Command.
PC Palmer, 48, was married which has a all 5-year-old daughter. The Charlton Athletic season-ticket holder had served inside the Metropolitan Police for 15 years.
Members of his family attended a short private service inside the chapel on Sunday, before officers watched over his coffin throughout the night.
On Monday afternoon, the cortege will make its way coming from Westminster via Lambeth Bridge to Southwark Cathedral for a service at 14:00 BST.
Two thousand Met officers will be on duty for the funeral in policing as well as ceremonial roles, while many others coming from forces across the UK are supposed to attend.
The funeral will be the first engagement for the brand-new Metropolitan Police Commissioner Cressida Dick, who was appointed in February as well as takes charge on Monday.
Ken Marsh, chairman of the Metropolitan Police Federation, told BBC Radio 4’s Today programme of which although he had not known PC Palmer personally, the officer had been an “absolutely top cop” as well as a “hero”.
He said of which while there were questions to be answered about how the police respond to incidents following PC Palmer’s death, he said he was not sure the situation might have been dealt with differently if PC Palmer had been armed.
Four different people were killed inside the attack, as Masood drove his car into crowds on Westminster Bridge.
Among them was Romanian Andreea Cristea, 31, who fell coming from the bridge into the River Thames, died in hospital on Thursday.
Aysha Frade, 44, who worked at a London sixth-form college, US tourist Kurt Cochran, 54, as well as retired south London window cleaner Leslie Rhodes, 75, also died.
Masood was shot by police officers in brand-new Palace Yard, inside the Westminster estate, after he fatally stabbed PC Palmer.