I think something like this would be useful. Maybe not a mannequin, but a tracking package dropped in the river on day 1. Its movement can then be analysed after a few hours, 1 day etc to see how far and fast it moves in the current conditions, just to give an idea of how far something could travel in those first few hours and days. Maybe they can do already do this.
Mother-of-two Nicola Bulley, 45, went missing on 27 January while walking her dog in the village of St Michael’s on Wyre, Lancashire.
uk.yahoo.com
I'm new to the forum and unsure how things work but before reading some of this thread I saw the comments on this story from Peter Faulding who is supposed to be an expert
"
Monday, 6 February
A team of private underwater search experts, who offered their services free of charge, joined the police operation to find Bulley.
But after searching three or four miles of the river on Monday, Peter Faulding, head of Specialist Group International (SGI), cast doubt on the police theory that she had fallen into the river.
He told TalkTV: “I personally don’t think she’s in the river, that’s just my gut instinct at this point.”
He said the river had not been moving fast and that when someone drowns "they generally go down where they are".
He added: "We normally find them within five to 10m of where they went down - even after a few days.
"This is the most baffling case I've ever worked on." "
It's stated she was a string swimmer and the river was slow moving on the day she vanished meaning that had she drowned she would have stayed put.
It also states in the piece that the family don't believe she went into the water and that there is no proof she did go in and her sister stated it's just a theory by the police that she went in the water and there is no proof she did so keep an open mind. The police also state they don't rule out that she may have driven off with someone.
I am sure the police would have informed the family if they had any proof or good reason to think that Nicola Bulley fell in the water. It seems more a case of ruling things out and seeing what's left as possibilities as far as the police are concerned.
Sorry if I'm not entering things properly.
I know nothing, put forward no conjecture, I just hope she is found soon and have sympathy for the family and whatever hell they are going through.