Tuesday, May 18, 1999 Published at 17:20 GMT 18:20 UK
TV plea to catch Dando killer
Crimewatch UK will focus on tracing witnesses
Click here to see how the tragedy unfolded
The officer in charge of the investigation will make a live appeal for information in the hunt for her killer.
Film crews spent two days in the street in Fulham where she was gunned down preparing material for the Crimewatch appeal.
The production team reveal that it was the most difficult assignment they have ever had. But Nick Ross, who will present the show on his own, says everyone is glad to be able to help the police.
"The whole team had been so upset by her death, and yet at least all the work on the reconstruction and other planning makes us feel we are doing something useful, a privilege most friends and relations of victims don't have."
The programme's producers and editors have spent Tuesday deciding which scenes they will include in the programme.
It is hoped that the images will help jog the memories of witnesses who might have spotted a number of men detectives would like to interview.
A dark haired, heavily sweating man is still their prime suspect.
Nick Ross is hoping that the massive publicity coupled with this special edition of Crimewatch UK will provide the breakthrough the police need.
The reconstrucion will be broadcast along with a live interview with the man leading the Scotland Yard murder hunt, Detective Chief Inspector Hamish Campbell.
Police officers in plain clothes might be sent to Jill Dando's funeral in Weston-super-Mare on Friday, because it is thought that the person responsible for the crime might want to attend.
Thousands of mourners are expected to line the streets of the presenter's home town along the three-mile route the hearse will follow.
Crimewatch UK will be broadcast at 2205 BST on BBC1 on Tuesday, 18 May and will be streamed from this site.