Solicitors acting for the family of one of of the guests injured at Alton Towers on Tuesday have said that claims for damages is “anticipated”.
Four people were seriously injured when two trains collided on the Smiler rollercoaster.
Among the injured was 19-year-old dancer Vicky Balch from Leyland in Lancashire, who is understood to remain in hospital.
Her family have described her injuries as “potentially life-changing”.
Paul Paxton, of legal firm Stewarts Law, told the Daily Mirror newspaper that legal action by the family was expected.
He said: “Whilst it is anticipated that there will be a substantial claim for damages to support Victoria in her recovery, the main focus at present for the family is Victoria’s well-being and ensuring that the investigation into the accident is carried out swiftly and vigorously.”
Paxton added that legal action from the police and Health and Safety Executive inspectors was expected to be considered.
He said: “They have every confidence in the police and the Health and Safety Executive. It is expected that serious consideration will be given to criminal prosecutions.
“The family are distraught that a fun day out could turn into such a potentially life-changing disaster.”
Staffordshire Police later revealed that they have now handed over the investigation to the HSE.