The Food Act 1998 and its accompanying regulations aim to ensure the safety of food products for public consumption, prohibiting the sale of harmful or contaminated food and imposing penalties for violations. Contamination can arise from physical, chemical, and microbiological hazards, with bacterial food poisoning being a significant concern caused by improper temperatures and cross-contamination. Preventive measures include maintaining proper food temperatures, practicing good personal hygiene, avoiding cross-contamination, and implementing pest control and cleaning protocols.