The London Olympics were 7 years in preparation. So why did the plans for security to be provided by private contractor G4S go so badly wrong?

Mukul Devichand hears from G4S guards and police officers working on the Olympic sites about their concerns for securing the Games. Whistleblowers talk of untrained guards operating the x-ray machines, men working 24 hour shifts and vans entering venues without being searched. Police officers tell the programme how they're trying to fill the security gaps left by G4S.

The Report also explores how G4S achieved the Olympic contract, their recruitment process and what seems to have gone wrong. And as media attention focuses on blaming G4S, Mukul Devichand asks if the London Organising Committee (LOCOG) could have sorted these problems much earlier on.

Producer: Charlotte Pritchard.