The parents of a Wiltshire teenager killed by a polar bear during an adventure holiday have launched a legal bid for the tour leaders to face criminal charges.
17-year-old Horatio Chapple from Bishopstone, near Salisbury, was killed as he slept in a tent on a remote glacier at Svalbard in Norway last summer. Four other people were injured.
The Norweigian authorities have ruled his death was preventable, but that leaders of the trip would not be prosecuted. Horatio's father wants that decision overturned, as Charlotte Wilkins explains.