The families of people killed in accidents such as the Ladbroke Grove train crash have called for legislation creating a corporate killing law to be brought forward immediately.
The families met MPs at the House of Commons yesterday at a reception organised by the TUC and the Centre for Corporate Accountability.
The TUC said Labour made a commitment in its 2001 manifesto to create a corporate killing law and to reform health and safety law which would impose safety duties on company directors.
TUC general secretary John Monks said: "We need to turn that agreement into practical legislation.
"We're concerned at the delay in bringing that legislation before parliament."
Other changes in the law that the families demanded included increasing the level of fines that courts can impose on convicted companies and abolishing Crown immunity.
They are also calling for more health and safety inspectors.
Among the family members attending the reception was Annie Jones, whose 24-year-old son Simon died at Shoreham Docks in 1998. She has been at the heart of the campaign for a corporate killing law.
Other attendees included the families of people who died in the Southall train disaster and the Avonmouth Bridge gantry collapse.
