Who has the power of detention and search according to the Poisons and Therapeutic Goods Act Section 43B?

The correct choice highlights the specific authority granted under the Poisons and Therapeutic Goods Act Section 43B. Within this context, the law clearly delineates the powers of detention and search specifically to sergeants and above in the police force. This is significant as it reflects the need for a certain level of training and authority when dealing with the control of substances that fall under this act, ensuring that the individuals performing these actions are properly equipped to handle the associated responsibilities.

The distinction that only those in higher ranks of the police force possess this power underscores the legislative intent to impose stricter controls on the oversight of potentially harmful substances, requiring a higher level of accountability. This approach aims to prevent misuse and ensure that any action taken regarding poisons and therapeutic goods is carried out effectively and lawfully by trained personnel.

In contrast, the other groups mentioned do not have these specific powers under this act, which provides a focused legal framework to safeguard public health and safety in relation to therapeutic goods and materials classified as poisons. The limitations on the authority of various groups reflect the law's intent to prevent unauthorized or improper handling of these substances.