The husband of special police constable Nisha Patel-Nasri, who was stabbed to death on her doorstep, said she was a woman "no-one else could touch".
Fadi and Nisha Patel-Nasri at their wedding with brother Katen
"She was extremely hard-working, bubbly and always on the go," said Fadi Nasri.
He added that his 29-year-old wife was "a helpful and forgiving woman who was proud to wear a police uniform".
Mr Nasri, 32, who runs a limousine firm from his home in Wembley, north London, said his wife had been killed on their third wedding anniversary.
Mr Nasri said his wife, a full-time hairdresser, had been a special constable for three years and "loved it".
"I was very proud of her and when she said she wanted to do it, I encouraged her but I had my worries for her safety.
"When she dressed up to go to work as a Special she would ask me 'Do I look cute?'
"She was proud to wear the uniform."
Mrs Nasri's brother Katen Patel, 33, was due to marry on Sunday but has cancelled the ceremony.
He said his sister had "practically organised" his side of the event and was "so excited" about it.
"Nisha will be hugely missed by everyone that knew her, especially by Fadi and myself. Things will never ever be the same," he added.
Police investigating Mrs Nasri's murder are focusing on a man spotted running from the scene by neighbours on Thursday.
They said the sighting remains their strongest lead as they continue inquiries into the murder of the off-duty officer.
The man, wearing a hooded top, ran from Sudbury Avenue, Wembley, towards Harrow Road.
Police searched the Wembley street for clues to the murder
Police said the suspect was likely to have been heavily blood-stained.
Det Supt Julian Worker, in making an appeal for witnesses, said: "I want to reiterate there was an awful lot of blood spilt here."
Mrs Nasri was attacked shortly before midnight after she went outside in her night clothes.
Police believe that she may have been investigating a noise outside her house.
Detectives say they are also appealing for a young couple who may have seen a suspect running away from the scene to contact the incident room.
The couple, both white, were casually dressed and came out of Sylvester Road on foot into Sudbury Avenue.