Pressure is growing on police to dig at a site where a possible victim of Levi Bellfield could be buried.
Bellfield - who says he murdered student Elizabeth Chau in 1999 - is willing to narrow the search spot on a map for cops, who have not yet dug at the location he already marked because it is too “vast”.
While Suresh Grover, who is representing the Chau family, has approached the investigating team for an immediate update, having also contacted the police commissioner Sir Mark Rowley and mayor of London Sadiq Khan in an attempt to force a full search of the site where Bellfield says the remains are.
“We haven’t heard anything, I’ve sent a letter to the Commissioner’s and the Mayor’s office, and the investigating team,” Mr Grover told the Mirror.
“The family is just waiting. We had a meeting with The Met two weeks ago and we’re waiting for a meeting with the Commissioner in the hope that we can convince the Metropolitan Commissioner to dig where Elizabeth is probably buried.
“It’s very frustrating and very hurtful for them (the family).”
The Met last night confirmed they were taking Bellfield’s disclosures “very seriously” and actively probing his claims.
Police are said to be looking at a nature reserve near Kempton Park racecourse in Surrey as a possible search spot.
Bellfield - jailed for killing schoolgirl Milly Dowler - confessed to snatching 19-year-old Elizabeth from the street near her home in Ealing, west London, 24 years ago.
He was interviewed under caution by police in HMP Frankland in May.
Elizabeth’s family have said that, in a meeting with officers afterwards, police told them the area of interest was too “vast” to dig straight away.
Bellfield’s lawyer Theresa Clark says her client has also offered to take police to the remains of the teen.
“He (Bellfield) is willing to narrow it down and if police don’t want to do anything then something else will be done I’m sure,” Ms Clark told the Mirror.
“He did offer to take them to the site and show them, I’m not sure what more he could do really.
“He’s done everything he can.”
She said Bellfield, 55, would help if bigger and better maps were brought for him to analyse.
“He is willing to narrow it down and will probably try to do it in due course when I go and see him,” she added.
“Everybody needs a bit of closure - the family in particular of course.”
She added: “He’s finding it increasingly frustrating not knowing what’s going on with these matters.
“He’s got nothing to gain from any of this.”
Bellfield signed a confession which is said to include chilling details of Elizabeth’s final moments.
At the time of Elizabeth’s disappearance he would have been 31 and working as a nightclub bouncer.
He earned the moniker the “Bus Stop Killer” because he stalked girls and young women who passed, approaching them in his van.
He was living in west London, not far from Elizabeth’s last known sighting.
She vanished as she walked back from Thames Valley University after she handed in an assignment.
Bellfield, of West Drayton, London, will spend the rest of his life in prison after being convicted of three murders.
His victims included schoolgirl Milly Dowler, 13, of Hersham, Surrey, who disappeared in 2002. Her badly decomposed body was found six months later.
A Metropolitan Police spokesperson said: “The Met is taking the disclosures made very seriously. Work is ongoing to investigate the claims.
“We can confirm we remain in contact with Elizabeth Chau’s family and continue to keep them updated with our enquiries.
“At this time we will not be providing an ongoing commentary.”
A spokesperson for the Mayor of London said: “The Mayor’s thoughts remain with Elizabeth Chau’s family.
“A letter from those representing Elizabeth’s family has been received by the Mayor's Office. The Mayor will urgently pass on their concerns to the Met and ask for swift action at this unimaginably difficult time.”