Final answer:
The inventory of controlled substances for pre-positioned War Reserve Materiel (WRM) is typically conducted by authorized and trained personnel such as pharmacists or medical officers, in accordance with an organization's SOPs and legal regulations.
Step-by-step explanation:
The question pertains to the specific protocols for conducting an inventory of controlled substances within the context of a medical setting, specifically regarding stock records for pre-positioned War Reserve Materiel (WRM). In general, the inventory of controlled substances is a highly regulated procedure to ensure the proper handling, storage, and tracking of these materials. Within military or similarly regulated environments, such inventories are typically conducted by personnel who have the proper authority and training to handle controlled substances, which may include pharmacists, medical officers, or other designated officials depending on the organization's policies and regulations. Standard Operating Procedures (SOPs) usually dictate this process to maintain compliance with legal and regulatory requirements. For specifics, one would need to consult the exact procedural documents or guidelines provided by the organization responsible for the WRM. In the absence of specific directives, generally, those with the requisite background in handling these substances and the authority to do so within the organization would be designated to perform the quarterly inventory.