71 security boxes were raided over Easter weekend in £60m London heist . In January 2013 , 294 security vaults were targeted at Berlin , Volksbank . In both cases , gangs left with millions worth of diamonds , gold and silver . Both gangs used pneumatic drills on the vaults , while dressed as workmen . Police - who missed alarms during both raids - believe thefts could be 'inside jobs '
71 security boxes were raided over Easter weekend in £60m London heist . In January 2013 , 294 security vaults were targeted at Volksbank , Berlin . In both cases , gangs left with millions worth of diamonds , gold and silver . Both gangs used pneumatic drills on the vaults , while dressed as workmen . Police - who missed alarms during both raids - believe thefts could be 'inside jobs '