Traceability concerns tracking the journey of food along the food chain, from producer to consumer. In the event of a food incident it enables the identification and subsequent withdrawal or recall of unsafe food from the market. Regulation can ensure that people have useful information about where their food comes from. Transparency from the food industry instils confidence. Systems of traceability and recall continue to develop and improve with advances in technology such as bar-coding, radio frequency identification, global data synchronisation and authenticity testing of foods.