Network Rail says it will plead guilty to a series of health and safety offences following the fatal Grayrigg train crash in 2007.
Passenger Margaret Masson died and 86 others were injured when a Virgin Pendolino was de-railed in Cumbria.
The company will be sentenced next month.
Today Margaret Masson's son, George, said that his family had been through hell for the last five years.
More top news
A look ahead at a calmer forecast for the Border region.
The sudden death of a 67-year-old man in Cumbria is confirmed to have been caused by carbon monoxide.
PHE says up to a fifth of antibiotic prescriptions are unnecessary - taken for illnesses such as coughs and sore throats.