But while David Lewis was plotting the raid, he was attacked and robbed by an armed gang.
Lewis, 25, was collecting cash from Bookers Cash and Carry in Leckwith, Cardiff, when an armed gang opened fire with a shotgun and robbed him of pounds 90,000.
Patrick Harrington, for the prosecution, said Lewis applied for the job with Securicor to plan robberies with Ian Paul, 36.
'He was taken on as a security guard after not disclosing his previous convictions for armed robbery,' he said. 'It was an unbelievable slip-up by Securicor.'
Lewis, fearing he had been double-crossed by Paul, told police how he had applied for the job to get information about cash deliveries.
He agreed to be fitted with a sound recorder at their next meeting and police listened in as Paul planned raids.
Lewis, and Paul, both of Cardiff, admitted conspiracy to rob. They were bailed to await pre-sentence reports.Reuse content