The funeral service for the policewoman killed in a road crash in Northern Ireland has taken place in Newtownabbey, Co Antrim.
The sister of Constable Philippa Reynolds told mourners at Mossley Methodist Church that she was her hero.
Debra Reynolds choked back tears as she paid tribute to her sister and her best friend.
"Never in my life would I think that I had to be the one saying goodbye," she said.
Constable Reynolds, 27, was a back-seat passenger in the unmarked police car that was struck by a 4x4 vehicle in Derry in the early hours of Saturday morning.
Two men have been charged in connection with her death.
PSNI Chief Constable Matt Baggott said she was a superb police officer, the best of the best.
He said she was compassionate and caring and wanted to make lives better.
Mr Baggott said: "She was the embodiment of what policing aspires too. She wanted to make Londonderry/Derry a finer and safer place, working towards building peace in that city."
Stormont First Minister Peter Robinson and Deputy First Mnister Martin McGuinness attended the service.
Constable Reynolds was buried at Carnmoney Cemetery.