LABOUR will force a binding vote on the Tories tomorrow to get ministers to hand over risk assessments relating to their use of collapsed contracting firm Carillion.

The vote will cover documents for all of the government’s “strategic suppliers” whose poor business performance could have huge impacts on the public sector and costs to the taxpayer.

Labour’s motion will use the same ancient but effective parliamentary procedure that was used to force the government to produce the Brexit impact assessments.

Ministers have refused to publish any details about contingency plans for Carillion’s collapse, which has endangered 20,000 jobs, thousands of people’s pensions and thousands of small businesses in the supply chain.

Shadow cabinet office minister Jon Trickett said: “By its own rules, the government should have taken action to protect our public services, setting out improvement plans for these firms.

“As we’ve seen no evidence of this, it seems reasonable to conclude government was asleep on the job.

“Given this clear incompetence, ministers must hand over the risk assessments and improvement plans so the public can see exactly what has gone on.”