[G4S said:]...Our screening processes should have been better implemented in this situation but it is a matter of speculation what role, if any, this may have played in the incident...The police have stated in open court that in their view and that of the CPS (Crown Prosecution Service) there is no corporate manslaughter investigation worth conducting...[F]ollowing an internal IT investigation it is clear that no [warning] emails were received by any member of our HR department...We also introduced new processes to ensure that these standards are applied strictly to future recruitment