Answer:
Inspections happen in order to bring reforms in the health and food industry. It is important to keep the vendors and businessmen on tip toes so they do not compromise on the health of the consumers in the lieu of making profit out of their sales.
As a common practice, inspection occurs after every six months but if a business has been raided before the average time period, that means that it was on high risk alert in terms of becoming a danger towards public health and safety. It i important that they keep following the protocol to save themselves from any kind of fine or law suit.