“…In line with this framework, the implementation of surveillance has increased over recent decades (Welsh et al, 2010). Formal surveillance, such as closed-circuit television (CCTV), store staff, security guards, and informal surveillance, such as lighting and placing of products, are seen to be effective measures against crime (Kajalo & Lindblom, 2010). Irrespective of transaction format, however, inventory loss due to customers has been and continues to be an ongoing problem for retailers, with exact figures typically estimated (Beck, 2011) and unlikely to be known.…”