The survey also revealed that the most common time for a robbery to take place is while cash is being carried from the transport to the store.
In an effort to help prevent CVIT robberies the British Retail Consortium (BRC) has published guidelines on how to improve security, including conducting regular assessments, staff awareness training and ensuring that any CVIT provider is doing its job properly.
"This is retail crime at its most extreme," said BRC director general Stephen Robertson. "It often has devastating consequences for those involved long lasting trauma, permanent disability and occasionally death. Encouraging retailers to use these guidelines to assess their set-up can make a significant contribution to reducing the human and financial costs."
Retailers can download the guidelines at www.brc.org.uk.