A cyclist who spent two weeks in a coma after colliding with a dog is taking legal advice and trying to track down the pet's owner.

Roz White, 52, was at death's door when a dog ran out in front of her bicycle and she crashed onto the path, fracturing her skull and rupturing an artery to her brain.

Since the accident in April 2011 she has fought back, returning to work part time and completing a charity cycle ride.

But her accident has exposed a legal difficulty over who is responsible when a dog, which is not on a lead, is involved in a crash.

Her husband Andy White said they were not looking for compensation but wanted someone to take responsibility.

He said: 'Police would release no details to us of the actions they had taken or who the dog owner was, without us engaging legal support.

'It was awfully difficult to get to the bottom of things.

'We were on the horns of a dilemma. We didn't know what to do.'

Owners are responsible for their pets but solicitor, Richard Clegg, from GMS Law, said they were not liable for accidents, if their pet acted completely out of character and had not shown any signs of causing problems before.

'It is more a question of the law being difficult rather than a grey area,' he said. 'It is more of a social problem than a police problem.'

Mrs White, a business manager at Chapel Break Infant School in Bowthorpe, was taken to Addenbrooke's after the accident.

She fractured her left eye socket and still suffers health problems, but has made a gradual recovery over the last 11 months.

Mr White appealed for anyone who witnessed the crash on April 11 last year on Bowthorpe Hall Road, or anyone who knew the dog owner to come forward.