Recently, more than three dozen cases of food poisoning/ infection were reported after a political party meeting attended by approximately 1,000 people. Food was served by a catering service, including salad. starters, soup, and variety of sumptuous main dishes and desserts. You are working for the City Health department and assigned to investigate the case. What is your role (position), how will you proceed to find the culprit/s of this incidents and what will be your recommendations to prevent such incidences from happening in future?