Sample Identification: Each sample must be uniquely identified with a label that includes details such as the date and time of collection, the person who collected it, and any relevant case numbers. Documentation: A detailed record must accompany the sample, documenting each person who handles it, the purpose of handling, and the date and time of each transfer. Security: The sample must be stored and transported in a secure manner to prevent contamination or tampering. Verification: Each transfer of the sample should be verified by the receiving party, ensuring that the sample was received in good condition and with intact seals.