London 2012 Olympics: Games could need more troops, Lord Coe suggests Officials said the company accepted "its responsibility" for the failures, adding that it stood to lose up to £50m on its Games contract. It is believed the company was likely to have made profits of up to £18m. It came as it emerged that 1000 extra police officers will be drafted in to patrol Olympic venues. Earlier, Lord Coe declined to discuss details of the contract G4S was given by Locog. "The G4S [contract] is robust and this is not the moment for the minutiae of legalese and a blame game here, we have 14 days to get it right,"" he said. The contract, which was increased almost threefold last year, does not contain any clear penalty clauses that would allow organisers to recoup costs incurred because of the company's failures. Locog is a private company, but the Government is the guarantor of Olympic funding, and ministers are under pressure to make G4S pay for its mismanagement. David Cameron insisted that the Government would "pursue" the company for money over the security situation. "I'm absolutely clear that if companies don't deliver on their contract then they should be pursued for that money," the Prime Minister said. The company is contracted to provide 10,400 civilian guards. G4S says it has 4,000 staff working at venues and a further 9,000 "in the pipeline." However, these 9,000 have to finish training, undergo security checks, be allocated rosters, be accredited and collect their uniforms. Olympic officials privately estimate that 30 per cent of the workers will fail to turn up for work, which could create a shortfall that troops would have to fill. The Armed Forces have contingency plans for another deployment. Senior military officers told The Daily Telegraph this week that they expect up to 20,000 uniformed personnel to be involved in the Olympic operation. Nick Buckles, the G4S chief executive, has been summoned to appear before the home affairs committee of MPs on Tuesday. On Friday night, Mr Buckles said in a statement: "We are deeply disappointed that we have not been able to fully deliver against our contract with LOCOG and that it has been necessary to call upon the additional military personnel." John Connolly, the newly appointed G4S chairman added: "It is a significant disappointment to everyone at the Company that we have fallen short of our obligations." Theresa May, the Home Secretary, told MPs this week that ministers were told only on Wednesday of the "absolute gap in the numbers." However, councils and police chiefs in London were expressing concerns about the G4S operation eight months ago. In a submission to a Commons inquiry in December, the London Councils organisation - which was representing 32 London boroughs, the Metropolitan Police Authority and the London Fire and Emergency Planning Authority - raised "significant" concerns about G4S regarding its "lack of planning and the misjudgement of the security costs." On Friday night, a senior G4S whistleblower told Channel 4 News the company bad been struggling with its recruitment targets since at least December. The former screening and vetting centre employee, who was not identified, said: "There were some concerns - you could tell there was a bit of a panic, but they didn't want to give too much away." G4S has not responded to the whistleblower's allegations.