The mother of Banbury student Simon Jones, who was killed in an accident at Shoreham Harbour almost three years ago, today backed a national campaign today to improve safety at work.

Anthropology student Mr Jones, 24, of Timms Road, died when his head was crushed by a crane grab in the West Sussex docks on his first day as a casual labourer during his Easter holiday in 1999.

His employer, the Dutch-owned firm Euromin, was found not guilty of manslaughter by an Old Bailey jury last November, but found guilty of failing to ensure health and safety rules were followed.

Mr Jones's mother, Anne, joined Maureen Kavanagh, whose son, Peter, died in the Southall train disaster, and other relatives of people who died in workplace accidents, at the launch of the new campaign.

The coalition called on the Government to introduce a new offence of corporate killing, and said courts should have the option of jailing company directors convicted of safety-related offences.

They also want an increase in the number of health and safety inspectors.

TUC general secretary John Monks unveiled a map showing where 1,500 people have been killed at work in Britain in the past five years.