Since 2001 more than 760 construction workers have been killed on sites.
Funding for the Health and Safety Executive was cut by 35 per cent in 2011.
40 per cent of construction workers are self-employed.
90 per cent of construction workers are not members of a trade union.
More than 3000 workers have been blacklisted, many for raising concerns about health and safety.
In 2010 the Donaghy report recommended the following:
Companies should name individual directors responsible for safety
Construction workers should be consulted about decisions on site
Local authorities should be empowered to inspect small domestic projects
The Gangmasters Licensing Authority should have power to deal with the construction industry
A minster for construction should be appointed.