Assistant Chief Constable Jerry Kirkby said he accepted the house-to-house inquiries should have been more exhaustive.
Some roads remain closed, including College Street in St Helens and Valley Road in Kirkby.
Dr Kirkby and his colleagues remain cautious about the result, however, because of a second finding.
People living near Heale Farm in Kirkby on Bain complained the smell made them feel sick and depressed.
BBC: Moy Park poultry farm fined ?50,000 for 'nauseous' smells
D. student in physics, and his advisor, Professor David Kirkby from the University of California at Irvine.
Colin Hall, 76, was attacked in his house in Cornerpin Drive, Kirkby-in-Ashfield at about 21:00 GMT on Sunday.
Mike Slack, chairman of the Kirkby Area Residents Association, said he felt the economic benefits were being exaggerated.
They will be replaced with five new "super stations" at Killingbeck, Menston, Rastrick, South Kirkby and Batley Carr.
But Elstone said any ground-sharing scheme would be less financially viable than Kirkby.
At the weekend, two men stole money from an elderly woman in Kirkby-in-Ashfield after they moved snow from her driveway.
The county council is considering expanding a scheme which closes alleys and footpaths after obtaining two gating orders in Hucknall and Kirkby-in-Ashfield.
"We discussed options for how we are going to regenerate Kirkby and I felt as if we made significant progress, " he said.
The proposed scheme, called Mowlands, would include up to 1, 800 homes, a 120-acre community park and an area for businesses in Kirkby-in-Ashfield.
The body of Rose-Marie Valente, 49, from Woodside Crescent in Bingley, was discovered on Black Bull Lane, Brough, Kirkby Stephen, on Monday.
Dr Close and Dr Kirkby want to build a modified cloud chamber.
About 10, 000 people living near the Sonae chipboard site in Kirkby are bidding for compensation, arguing fumes from the blaze affected their health.
The alternative to the Kirkby project would be for Everton and Liverpool to embark on a joint development and subsequently share the new stadium.
Merseyside Police said they were called to a disturbance at football fields near Simonswood Lane in Kirkby, where a number of matches were being played.
Councillor Ron Round, leader of Knowsley Council, said Monday's meeting was productive, but added his focus was very much on Kirkby and not the stadium proposal.
The club are in talks about relocating to Kirkby but Wyness told BBC Five Live the fans' concerns about moving out of Liverpool would be considered.
They discussed the crisis with Ms Alexander, UK Industry Minister Brian Wilson, Scotland Office Minister George Foulkes and Simon Kirkby, head of BAE Systems marine division.
If either is right, Drs Close and Kirkby hope to be able to tell just how big an effect cosmic rays should have on cloud formation.
An 80-year-old woman was found dead in her back garden in Workington on Wednesday and a man was found in his garden in Kirkby Stephen on Tuesday.
Shareholders were told at an AGM on Monday that the club had entered into a three-way partnership with supermarket Tesco and Knowsley Council to investigate the possibility of building a new stadium in Kirkby - four miles outside Liverpool.
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