The Crossrail project is building a 73 mile railway across London
The Scottish Affairs Committee says London's Crossrail project should be investigated after it heard "compelling evidence" of blacklisting of construction workers.
The committee has been taking evidence from the building industry and unions.
Its chairman, Ian Davidson, has written to Business Secretary Vince Cable to express his concerns.
Crossrail is a £14.5bn project in London and is run by a consortium including BAM, Ferrovial and Kier.
Writing to Vince Cable MP, Ian Davidson MP, Chair of the Committee, said: "The Committee has now received written evidence and held a formal Committee hearing on the 3 July with Gail Cartmaill of Unite the Union, who has given us what we believe to be clear proof that blacklisting for trade union and health and safety activities has been going on within the contract for the Crossrail project run by BFK (BAM, Ferrovial and Kier)."
A spokesman for Crossrail said: "Since September 2012, the Unite union has made a series of unsubstantiated allegations against Crossrail Limited.
"Crossrail has made repeated requests to be provided with any evidence of the claims made against it by Unite but nothing has been forthcoming.
"Crossrail has asked for and received assurances from all its principal contractors providing confirmation that none have engaged in any blacklisting activity on the Crossrail project. Crossrail will co-operate fully with any investigation undertaken by the Information Commissioner."
Source: BBC News - Business http://www.bbc.co.uk/news/business-23416207#sa-ns_mchannel=rss&ns_source=PublicRSS20-sa
