Harri wrote:I think you will find, all river beds are owned by the enviromental agencies, landowners own up to the river banks, and all fishing rights etc;
The Enviroment agencies are very touchy about people disturbing river beds.
Maybe, someone here knows better, but I am pretty sure this is the way it is?
Sorry, but unless things have changed very recently this is wrong (and I am fairly sure that they have not).
As others have said the adjacent landowners own to the middle of the river. These are the people you need to contact re detecting the river bed.
Normally, they also own such things as the fishing rights, this is know as the riparian rights.
Unless a section of river is where fish breed (eg spawning grounds for salmon and trout) the Enviroment Agency are not normally worried about limited disturbance to the river bed. What they are much more interested in is anything that might effect the flow of the river in any away (eg narrowing, deepening or obstructing).
Changing tack slightly I notice that the OP mentions says "a nice part of the river I would like to search in the Chester area.". Depending exactly where if on the Dee this could be tidal, if so it is regarded as "sea bed" and not "river bed" (prime examples of this are the Thames in London and the Severn in Gloucester ... which you would think are "river bed" but are in fact "sea beds"!). This totally changes the game and it comes under the crown estate and the following applies (taken directly from the Crown Estate metal detecting pages)
"Seabed Metal Detecting
At present The Crown Estate does
not grant permits for the sea bed as the Treasure Act does not apply below the foreshore."
Evan