All true and I am fully aware of the whole area especially if you look at my fickr site and were I obtain my images from along that line. The land in question has not been farm land for many many years to be honest but it may not be entirely Halton BC fault though about the cloak and dagger as you put it.The site Alstom is looking at (former Amazon site) is greenfield. It was farming land that had laid fallow for a number of years. A few years ago Halton built a park around what was to be the edge of the site before preparing the site to be sold. Very cloak and dagger at the time. Typical council keeping things quiet. The site is so big that industrialisation will now come right up to the council border with Knowsley. Then there will only be a couple of green fields between the extremities of the Liverpool conurbation and Widnes/Runcorn.
All councils in England are under pressure from Central Government to make land available for the future to take care of housing and industrial needs - that includes certain greenbelt land going brownfield land were necessary, if their is no suitable brownfield sites to begin with! There lies the rub, if i use Knowsley BC as an example, they had to submit to Central Government their plans for expansion in the area which did include Greenfield sites for conversion whether the council liked it or not! Currently the decision from Central Government is still being made although the plans were submitted 12 months ago which includes a Greenbelt site near where I live. This process will also include other councils from around the UK including Halton BC. It is possible that this area at Halebank has been part of that process sometime ago? If so, dont entirely blame Halton BC for it, look towards Central Government too!