In short Yes.
However it maybe possable for her to receive support at home and not within a care home and your local Council may also favor that as it may cost them less.
A welfare rights officer at your Local Social work Dept should be able to explaine. The options available To you and your mother. ( costs nothing)
CAB will also advise on options . ( again no cost )
At the end of the day i dont know your situation and can only give some pointers and the lawyer route can cost lots.
I am aware of this as i have delt with simmilar situations over the years.
I am also Scottish and aware of how local councils can take everyting off the elderly when entering care homes.