The document is a clarification from the Deputy Director of the Food Safety and Standards Authority of India regarding sampling and case studies. It discusses different types of samples including regulatory samples which can be used for legal action, and surveillance samples which are for monitoring purposes only. It provides examples of case studies involving investigational samples, including one where a product was found to be misbranded for not disclosing an ingredient, and another where a product was found to be unsafe due to the presence of pesticides.