A man who suffered head injuries when he was attacked with a pole and then held in custody for 10 hours is suing the police.
Dean Hutton was left without medical treatment despite officers knowing the nature of his injury.
The 26-year-old, of Wath, sustained brain injuries and now requires care.
South Yorkshire Police has now admitted liability. A spokeswoman said: “Police can confirm that it has accepted liability for Mr Hutton’s injuries. Our thoughts remain with Mr Hutton, his family and friends.
“Our solicitors are in consultation with Mr Hutton’s legal team.”
Mr Hutton was arrested following a fight in Rotherham in 2009 because he had failed to appear at court on a previous charge. Paramedics recommended he be taken to hospital because of the blow to the head, but Mr Hutton declined and was taken to Rotherham Main Police Station, a report said.
After 10 hours, he had difficulty breathing and was taken to hospital, where it was revealed he had suffered a serious brain injury.
Roy Hutton, Dean’s father, said: “Before his brain injury, Dean was completely independent but now needs help with almost everything he does. But Dean is battling back bravely and his rehabilitation has helped.”
The family’s lawyers Irwin Mitchell are working to secure a full settlement.