A building firm has been fined £10,000 after a 17-year-old mental health patient broke her back and pelvis when she fell six metres from the roof of the Royal Preston Hospital in Fullwood.
W Hughes & Son Ltd was prosecuted by the Health & Safety Executive after an investigation found the company had failed to prevent access to the scaffolding on the site.
Preston Magistrates' Court heard on Wednesday that the firm had been hired to replace the flat roof on a single-storey section of the hospital. It used scaffolding to reach the roof but failed to properly fence off the steps leading up the scaffolding tower.
The 17-year-old, who was staying in the hospital's Mental Health Unit, was able to climb the scaffolding on 17 October 2013. She fell from the roof in the gap between two buildings and the emergency services had to remove a hospital window to free her. She was in hospital for several weeks as a result of her injuries.
W Hughes & Son Ltd, of Collinson Street in Preston, was fined £10,000 and ordered to pay £516 in prosecution costs after pleading guilty to a breach of the Construction (Design and Management) Regulations 2007.
Speaking after the hearing, HSE Inspector Chris Smith said: "A vulnerable teenager was badly injured because W Hughes & Son Ltd failed to make sure its scaffolding was properly fenced off.
"Construction firms have a legal duty to make sure construction sites are secure and clearly signed but that didn't happen in this case.
"It's vital that companies think carefully about how they plan projects in public places, such as hospitals, so that members of the public are not put at risk."
No one was available to comment at W Hughes & Son Ltd.