Armed police are standing guard outside shops across South Yorkshire as a deterrent to robberies.
Officers are working with security firms delivering or collecting money as part of Operation Monarch, which is being held for the fifth year.
Chief Inspector Caroline Rollitt said a combination of tactics were being used to make potential armed robbers think twice.
“These include deploying both covert and overt police resources, together with specialist firearms teams to keep track on security vans during this vulnerable time. Cash-in-transit vans are selected and followed to their drop-off points.”